Clothes that fit tighter than usual
If your jeans feel snug but you swear you haven’t changed your eating or exercise habits, an underactive thyroid might be to blame. “Lack of hormones decreases metabolism and calorie burning, so you may see gradual but unexplained weight gain,” says Dr. Gharib.
Sweating at random times
Excessive sweating when you’re not exerting yourself is a common sign of a hyperactive thyroid. “The thyroid regulates the body’s energy production. Higher than normal hormone levels mean your metabolism is revved up, which causes people to feel overly warm,” says Dr. Gupta.
Thinning hair, particularly on your eyebrows is a common sign of thyroid disease. An underactive or overactive thyroid throws off your hair growth cycle, says Dr. Gupta. Usually, most of your hair grows while a small portion rests. When thyroid hormones are imbalanced, too much hair rests at one time, which means hair looks thinner, notes EverydayHealth.com.