10 Symptoms of Hypothyroidism
1. Fatigue & Low Energy
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Feeling constantly tired, even after a full night’s sleep.
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Caused by slowed metabolism and reduced thyroid hormone production.
2. Weight Gain
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Unexplained weight gain despite no major change in diet or activity.
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Thyroid hormones regulate metabolism; low levels slow calorie burning.
3. Cold Intolerance
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Feeling unusually cold while others are comfortable.
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Hypothyroidism reduces heat production in the body.
4. Dry Skin & Hair
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Skin may become rough, dry, or pale.
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Hair can thin or become brittle, and hair loss is common.
5. Hair Thinning or Hair Loss
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Especially noticeable in the eyebrows (outer third) and scalp.
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Nail brittleness can also occur.
6. Puffy Face & Swelling (Edema)
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Puffiness around eyes, hands, or feet due to fluid retention.
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Sometimes described as “moon face.”
7. Slow Heart Rate
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Bradycardia (slower than normal heartbeat).
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Can cause dizziness, fatigue, or fainting in severe cases.
8. Constipation
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Sluggish digestion is common due to slowed metabolic and gut activity.
9. Depression or Mood Changes
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Feeling down, low motivation, or memory problems.
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Brain function is influenced by thyroid hormones, affecting mood and cognition.
10. Swelling in the Neck (Goiter)
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Enlargement of the thyroid gland.
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Can occur if the thyroid is struggling to produce enough hormones.
⚠️ Other Possible Signs
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Hoarseness
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Puffiness in hands and feet
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Pale or yellowish skin
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Muscle weakness or cramps
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Swelling in the tongue or voice changes
Key Takeaways
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Hypothyroidism develops slowly; early symptoms can be subtle.
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If you notice multiple symptoms, it’s important to see a healthcare provider for blood tests (TSH, T3, T4).
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Treatment with thyroid hormone replacement is effective and often resolves symptoms.
I can also make a simple checklist you can use at home to track possible hypothyroidism symptoms over time if you want.
Do you want me to create that checklist?
