When the thyroid does not produce sufficient thyroid hormonal agent, hypothyroidism (low thyroid) is a hormone imbalance triggered. What are the Symptoms of Hypothyroid? The most common are fatigue and intolerance to cold. If everyone is wearing brief sleeves and you are wearing a jacket, you most likely have a hypothyroid concern. Other common signs are psychological instability or depression, muscle weakness and fatigue, bad memory, lethargy and headaches. Still other signs are deep slow speech, hair loss, cold hands and feet, irregularity, pale thick skin, breakable nails, and swelling of the face and eyelids. And lastly ... unpleasant and excessive menstrual flow, anxiety and palpitations. Ways to Know for Sure? You can ask your physician to perform a thyroid test and/or carry out the list below simple self-test in the house: