Symptoms worth paying attention to
Symptoms worth paying attention to
This page is not a diagnosis tool. It is a starting point — a way to connect what you are feeling to what might be worth investigating, and what to bring to your next appointment.
Most of these symptoms are dismissed or normalized for years before anyone looks deeper. You deserve better than that.
Medical disclaimer: This content is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. If you are experiencing any of these symptoms, please consult a qualified healthcare provider. Do not delay seeking medical care based on information found here.
When to go to the ER or call 911 immediately: Chest pain or pressure, sudden shortness of breath, signs of stroke (face drooping, arm weakness, speech difficulty), severe allergic reaction, fainting or loss of consciousness, sudden severe headache unlike any you have had before, or heart palpitations with chest pain, dizziness, or shortness of breath. This page is not for those situations. When in doubt, go.
Fatigue
Possible causes
- Iron deficiency or low ferritin
- B12 deficiency
- Hypothyroidism
- Vitamin D deficiency
- Adrenal dysfunction (cortisol)
- Anemia
- Blood sugar dysregulation
- Low testosterone
- Depression or anxiety
- Poor sleep quality
- Chronic inflammation
Labs to ask for
- CBC with ferritin
- B12 (methylmalonic acid if borderline)
- Full thyroid panel (TSH, Free T3, Free T4)
- Vitamin D (25-OH)
- AM cortisol
- HbA1c + fasting glucose
- Testosterone (total + free)
- CMP (kidney + liver)
- hsCRP (inflammation)
Lifestyle factors
- Chronic sleep deprivation
- Sedentary lifestyle
- High sugar, low protein diet
- Alcohol consumption
- Chronic stress
- Dehydration
- Over-exercising without recovery
Fatigue is the most common complaint and the most dismissed. "You're just stressed" or "you're getting older" are not acceptable answers when you have not had a full workup. Push for the labs above before accepting that explanation.
Brain fog
Possible causes
- Hypothyroidism
- B12 deficiency
- Low estrogen (perimenopause)
- Blood sugar instability
- Chronic inflammation
- Poor sleep
- Iron deficiency
- Vitamin D deficiency
- Elevated homocysteine
- Omega-3 deficiency
- Gut dysbiosis
Labs to ask for
- Full thyroid panel
- B12
- Estradiol, FSH (women)
- HbA1c + fasting insulin
- hsCRP
- Homocysteine
- Ferritin
- Vitamin D
- Omega-3 index
- CBC
Lifestyle factors
- Poor sleep quality or quantity
- High sugar diet
- Alcohol
- Chronic stress
- Sedentary lifestyle
- Dehydration
- Processed food diet
- Low omega-3 intake
Brain fog is not a diagnosis — it is a symptom with many possible drivers. The most common and most fixable ones are thyroid, blood sugar, and nutrient deficiencies. Start there.
Hair loss
Possible causes
- Low ferritin (most common, most missed)
- Hypothyroidism
- Hormonal changes (postpartum, perimenopause)
- Low protein intake
- Zinc deficiency
- B12 or folate deficiency
- Excess vitamin A supplementation
- Telogen effluvium (stress shedding)
- Autoimmune (alopecia areata)
- DHT-driven androgenic alopecia
Labs to ask for
- Ferritin (ask for the number — under 50 is a problem)
- Full thyroid panel
- Full hormone panel
- Zinc
- B12 and folate
- CBC
- Vitamin D
- Total protein + albumin
Lifestyle factors
- Crash dieting or very low calorie intake
- Low protein diet
- Chronic high stress
- Recent illness or surgery
- Extreme weight loss
- Oversupplementation of vitamin A
Low ferritin is the single most common and most overlooked cause of hair loss in women. If your ferritin is under 70 and you are losing hair, that is where to start — not with expensive topicals.
Poor sleep
Possible causes
- Low progesterone (women)
- Cortisol dysregulation
- Blood sugar drops overnight
- Magnesium deficiency
- Perimenopause / hot flashes
- Thyroid dysfunction
- Sleep apnea
- Anxiety or chronic stress
- Vitamin D deficiency
- Low melatonin (age-related)
Labs to ask for
- Progesterone (day 21 of cycle)
- AM and PM cortisol
- HbA1c + fasting glucose
- RBC magnesium
- Full thyroid panel
- Estradiol, FSH (women in 40s+)
- Vitamin D
- Discuss sleep study if snoring or apnea suspected
Lifestyle factors
- Blue light exposure before bed
- Irregular sleep schedule
- Alcohol (disrupts sleep architecture)
- Caffeine after 2pm
- Eating large meals late
- High stress without wind-down routine
- Room temperature too warm
Poor sleep is simultaneously a symptom and a cause. It drives inflammation, blood sugar dysfunction, weight gain, and mood issues. It is worth investigating aggressively, not just accepting.
Mood changes
Possible causes
- Low estrogen or progesterone
- Hypothyroidism
- B12 deficiency
- Vitamin D deficiency
- Low omega-3s
- Blood sugar instability
- Cortisol dysregulation
- Iron deficiency
- Low testosterone
- Clinical depression or anxiety
- Gut dysbiosis
Labs to ask for
- Full hormone panel
- Full thyroid panel
- B12
- Vitamin D
- Omega-3 index
- HbA1c + fasting insulin
- AM cortisol
- Ferritin
- hsCRP
Lifestyle factors
- Chronic sleep deprivation
- Social isolation
- High sugar, low nutrient diet
- Alcohol
- Sedentary lifestyle
- Chronic stress without outlets
- Lack of sunlight exposure
Rule out the physical causes before assuming the cause is purely psychological. Many women are prescribed antidepressants when the underlying issue is perimenopause, thyroid dysfunction, or nutrient deficiency. Both can be true simultaneously — but know what you are working with.
Weight changes (unexplained)
Possible causes
- Hypothyroidism (weight gain)
- Insulin resistance
- Cortisol elevation
- Estrogen decline (menopause)
- Hyperthyroidism (weight loss)
- Medication side effects
- Depression
- GI malabsorption
- Diabetes (uncontrolled, weight loss)
Labs to ask for
- Full thyroid panel
- HbA1c + fasting insulin
- AM cortisol
- Full hormone panel
- CMP (liver, kidney, glucose)
- CBC
- hsCRP
- Lipid panel + ApoB
Lifestyle factors
- Sleep deprivation (drives hunger hormones)
- Chronic stress (cortisol drives fat storage)
- Ultra-processed food diet
- Low protein intake
- Loss of muscle mass with age
- Sedentary lifestyle
Unexplained weight gain is not a willpower problem. It is a metabolic signal. Thyroid and insulin resistance are the two most common and most correctable drivers — and both are entirely missed without the right labs.
Bloating and digestive issues
Possible causes
- Gut dysbiosis (imbalanced microbiome)
- SIBO (small intestinal bacterial overgrowth)
- Food intolerances (gluten, dairy, FODMAPs)
- Low stomach acid
- Hypothyroidism (slows motility)
- Estrogen dominance
- IBS
- Celiac disease
- Chronic stress
Labs to ask for
- Full thyroid panel
- Celiac antibodies (tTG-IgA)
- Full hormone panel
- GI stool test (comprehensive)
- SIBO breath test
- Food sensitivity panel (IgG)
- CBC + CMP
- hsCRP
Lifestyle factors
- Low fiber diet
- Eating too fast
- Antibiotic history (disrupts microbiome)
- Chronic stress (gut-brain axis)
- Low water intake
- Alcohol and processed foods
- NSAIDs (damage gut lining)
Chronic bloating is not normal. It is a signal. The gut-brain axis is real — stress directly affects gut motility and microbiome composition. Physical and psychological causes are often intertwined.
Irregular periods
Possible causes
- Perimenopause
- PCOS (polycystic ovary syndrome)
- Thyroid dysfunction
- Hyperprolactinemia
- Low body fat or extreme exercise
- Significant stress
- Elevated androgens
- Insulin resistance
- Endometriosis
Labs to ask for
- Full hormone panel (estradiol, progesterone, testosterone, FSH, LH)
- Full thyroid panel
- Prolactin
- DHEA-S
- HbA1c + fasting insulin
- AMH (ovarian reserve)
- Pelvic ultrasound (discuss with provider)
Lifestyle factors
- Extreme caloric restriction
- Overtraining
- Chronic high stress
- Significant weight changes
- Very low body fat percentage
Irregular periods are a vital sign. Your cycle is a window into your hormonal health — changes in pattern, flow, or timing are worth investigating, not just managing with birth control without understanding the underlying cause.
Low libido
Possible causes
- Low testosterone (women and men)
- Low estrogen (perimenopause)
- Hypothyroidism
- Elevated prolactin
- Depression or anxiety
- Relationship stress
- Medication side effects (SSRIs, birth control)
- Cortisol elevation
- Poor sleep
Labs to ask for
- Testosterone (total + free)
- Estradiol
- Full thyroid panel
- Prolactin
- AM cortisol
- DHEA-S
- CBC + CMP
Lifestyle factors
- Chronic sleep deprivation
- High stress
- Alcohol
- Sedentary lifestyle
- Poor body image
- Relationship disconnection
- Pornography use patterns
Low libido is one of the most underreported symptoms because it feels personal. It is also one of the most physiologically driven. Start with the labs before assuming it is entirely psychological.
Joint pain
Possible causes
- Inflammation (diet-driven)
- Estrogen decline (joint lubrication)
- Autoimmune (rheumatoid arthritis, lupus)
- Hypothyroidism
- Vitamin D deficiency
- Omega-3 deficiency
- Lyme disease
- Gout (uric acid)
- Osteoarthritis
Labs to ask for
- hsCRP + ESR (inflammation markers)
- ANA (autoimmune screen)
- Rheumatoid factor
- Full thyroid panel
- Vitamin D
- Omega-3 index
- Uric acid
- Full hormone panel (women)
- Lyme antibody (if relevant exposure)
Lifestyle factors
- Pro-inflammatory diet (high sugar, seed oils)
- Sedentary lifestyle (reduces joint lubrication)
- Excess body weight
- Dehydration
- Overuse or repetitive strain
- Poor sleep (drives inflammation)
- Low omega-3 intake
Joint pain that starts in perimenopause is frequently estrogen-related and frequently missed. Estrogen has significant anti-inflammatory properties — its decline affects joints, tendons, and connective tissue throughout the body.
Heart palpitations
Possible causes
- Perimenopause (estrogen fluctuation)
- Anxiety or panic
- Thyroid dysfunction (hyper or hypo)
- Anemia
- Magnesium deficiency
- Electrolyte imbalance
- Caffeine excess
- Dehydration
- Cardiac arrhythmia
Labs to ask for
- Full thyroid panel
- CBC (anemia)
- RBC magnesium
- Electrolytes (potassium, sodium)
- Full hormone panel (women)
- EKG (ask your provider)
- Holter monitor if frequent
Lifestyle factors
- Excess caffeine
- Alcohol
- Dehydration
- High stress
- Poor sleep
- Stimulant use
- Intense exercise without conditioning
Palpitations with chest pain, shortness of breath, or dizziness warrant immediate medical attention. Palpitations alone in a perimenopausal woman with no cardiac history are very commonly estrogen-driven — but always rule out cardiac causes first.
Cold intolerance
Possible causes
- Hypothyroidism (most common cause)
- Iron deficiency anemia
- Low body fat
- Raynaud's phenomenon
- Vitamin B12 deficiency
- Adrenal insufficiency
- Poor circulation
- Underweight or caloric restriction
Labs to ask for
- Full thyroid panel (TSH, Free T3, Free T4)
- CBC + ferritin
- B12
- AM cortisol
- CMP
- ANA (if Raynaud's suspected)
Lifestyle factors
- Very low calorie intake
- Low body fat percentage
- Sedentary lifestyle (poor circulation)
- Smoking (constricts vessels)
- Chronic dieting
Always feeling cold while others are comfortable is a classic hypothyroid symptom. Free T3 — the active thyroid hormone — is the most relevant marker here. TSH alone can be normal while Free T3 is low.
Dry skin
Possible causes
- Hypothyroidism
- Estrogen decline
- Essential fatty acid deficiency
- Vitamin A deficiency
- Dehydration (chronic)
- Zinc deficiency
- Eczema or psoriasis
- Diabetes (skin changes)
- Aging (collagen decline)
Labs to ask for
- Full thyroid panel
- Full hormone panel (women)
- Omega-3 index
- Zinc
- HbA1c
- Vitamin D
- CBC + CMP
Lifestyle factors
- Low water intake
- Low fat diet (depletes essential fatty acids)
- Alcohol (dehydrating)
- Harsh soaps or cleansers
- Hot showers
- Low humidity environments
- Low omega-3 dietary intake
Skin is an external reflection of internal health. Sudden or worsening dry skin is worth investigating, not just treating topically. Thyroid and estrogen are the most common internal drivers.
Headaches
Possible causes
- Hormonal fluctuations (estrogen drops)
- Dehydration
- Magnesium deficiency
- Blood sugar instability
- High blood pressure
- Sleep deprivation
- Tension and muscle tightness
- Caffeine withdrawal
- Thyroid dysfunction
- Elevated homocysteine
Labs to ask for
- Full hormone panel (especially estradiol)
- RBC magnesium
- HbA1c + fasting glucose
- Blood pressure (check regularly)
- Full thyroid panel
- Homocysteine
- CBC
Lifestyle factors
- Dehydration
- Skipping meals (blood sugar drops)
- Poor sleep
- High stress
- Caffeine dependence and withdrawal
- Screen time and eye strain
- Poor posture and neck tension
- Alcohol
Hormonal headaches — especially those that worsen around the menstrual cycle or in perimenopause — are estrogen-driven and highly responsive to hormonal management. Magnesium deficiency is also one of the most common and most correctable migraine triggers.
Anxiety
Possible causes
- Low progesterone (calming hormone)
- Cortisol dysregulation
- Thyroid dysfunction (hyper or hypo)
- Blood sugar instability
- Magnesium deficiency
- B12 deficiency
- Perimenopause
- Caffeine excess
- Clinical anxiety disorder
- Gut dysbiosis (gut-brain axis)
Labs to ask for
- Progesterone (day 21)
- AM cortisol
- Full thyroid panel
- HbA1c + fasting insulin
- RBC magnesium
- B12
- Full hormone panel
- hsCRP
Lifestyle factors
- Excess caffeine
- Poor sleep
- Blood sugar swings (skipping meals)
- Alcohol (worsens next-day anxiety)
- Sedentary lifestyle
- Social media and news overconsumption
- Lack of nervous system regulation practices
Progesterone is your body's natural calming hormone. As it declines in perimenopause, anxiety that seems to come out of nowhere is extremely common and extremely treatable. Do not accept "you're just anxious" without a hormonal workup.
Use this page as a starting point, not a conclusion. Print it, bring it to your appointment, and advocate for the labs that apply to what you are experiencing.
You know your body. If something feels off, it probably is. Keep asking until you get answers.
Nurse Ann
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