Symptoms can vary, but common signs include:
- Underactive thyroid (Hypothyroidism):
- Feeling tired or weak
- Muscle and joint pain
- Constipation
- Weight gain
- Feeling cold easily
- Depression
- Changes in hair and skin
- Overactive thyroid (Thyrotoxicosis): (Though less common)
- Feeling hot easily
- Fast heart rate
- Sweating
- Weight loss
- Shakiness
- Anxiety