On World Thyroid Day, we take a look at the signs that could indicate a thyroid imbalance.

On World Thyroid Day (25 May), we’ve put together some symptoms that shouldn’t be overlooked.

Signs of an abnormal thyroid

1. Fatigue. Being tired in the morning or during the day after a good night’s sleep may be a clue that your thyroid is underactive (hypothyroidism).
2. Sadness. Feeling depressed can be a symptom of hypothyroidism. Low thyroid hormone production can impact “feel-good” serotonin levels.
3. Anxiety. Feeling shaky or nervous is associated with hyperthyroidism, when the thyroid gland produces too much thyroid hormone. If you find it hard to relax, it may be because your thyroid is “hyper”.
4. Confusion. Too much thyroid hormone (hyperthyroidism) can cause difficulty concentrating and too little (hypothyroidism) can cause forgetfulness and general mental fogginess.
5. Rapid heartbeat (palpitations). Your heart may feel like its fluttering, beating very fast or even like it’s in your throat. Fluttering or palpitations may be a sign of hyperthyroidism.
6. Dry skin. Dry, itchy skin can be a symptom of hypothyroidism. It can also cause less sweat and brittle nails.
7. Irregular bowel rhythm. People with hypothyroidism complain of constipation. On the other hand, an overactive thyroid can cause diarrhoea or very frequent bowel movements.
8. Feeling cold. Feeling cold is linked to hypothyroidism. An underactive thyroid means the body produces less heat. A hyperactive one, on the other hand, can make you feel too hot.
9. Changes in weight. If you have gained weight for no apparent reason it may be due to an underactive thyroid. Conversely, sudden weight loss would indicate hyperthyroidism.
10. Sore limbs. A sudden twinge in the arms, legs, feet or hands could be a sign of hypothyroidism. Too little thyroid hormone can cause nerve damage in the long run.

Talk to your doctor If you have more than one symptom from this list.

This post is also available in: Portuguese (Portugal)