2. Your Eyes Look Bigger
If anyone ever tells you that your eyes look bigger or that it looks like you’re staring (like, all the time), it may be a sign of the most common form of hyperthyroidism, the autoimmune disorder Graves disease, says Figaro. Your eyes appear larger because your eyelids are elevated, since tissues behind the eye are inflamed.
3. Your Hair Stops Growing
If your hair feels coarser or you have less of it anywhere on your body—including your head—it could be a sign of hypothyroidism, since thyroid hormones are in charge of hair growth, says Figaro.