Symptoms
Common symptoms include:
- Anxiety
- Difficulty concentrating
- Fatigue
- Frequent bowel movements
- Goiter (visibly enlarged thyroid gland) or thyroid nodules
- Hair loss
- Hand tremor
- Heat intolerance
- Increased appetite
- Increased sweating
- Irregular menstrual periods in women
- Nail changes (thickness or flaking)
- Nervousness
- Pounding or racing heart beat (palpitations)
- Restlessness
- Sleep problems
- Weight loss (or weight gain, in some cases)
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