Typically, a thyroid problem comes in one of several forms. Your loved one may be hyperthyroid…that means that the thyroid gland is overactive, and producing too much thyroid hormone. When the thyroid becomes overactive, you can think of it a bit like the gas pedal on the car is stuck, and the engine is flooding. If your loved one is going through hyperthyroidism, he or she may be feeling extremely anxious and nervous, with a rapidly beating heart, higher blood pressure, and even palpitations. Some people describe the sensation as like their heart is beating so hard and loud everyone around them can even see it and hear it! They may be hungry and thirsty all the time, suffering from diarrhea even, and losing weight. Others may even be wondering, wrongly, if your loved one’s rapid weight loss is due to an eating disorder or some sort of illness like cancer or AIDS. His or her eyes may be sore, sensitive, gritty and irritated, and vision can even become blurry. Sleep may be difficult or impossible, and lack of sleep combined with the body zooming along at 100 miles an hour can cause extreme exhaustion and muscle weakness. Frankly, people who are in the throes of hyperthyroidism have told me that they feel and look like someone who is strung out on drugs, or who has had 20 cups of coffee after not sleeping for a week. With heart pounding, and all body systems going full tilt, your jittery, stressed-out hyperthyroid loved one may even feel like he or she is losing it, ready to fall apart at any moment.