If you’re experiencing symptoms like unexplained weight gain, feeling cold and fatigue your physician will likely suspect your thyroid. But treating just the thyroid hormones, if the test even shows low levels, may only be addressing part of the problem. Hypothyroidism or low thyroid hormone levels have several different causes. But one cause that is often overlooked is low progesterone levels. Thyroid 101 Your thyroid is a small gland located at the front of your neck. It p