Low metabolism, low body temperature, high cholesterol, and
unexplained weight gain are classic symptoms of hypothyroidism. Bradycardia and
orthostatic hypotension are also symptoms of low thyroid hormone. Easy bruising can be seen with deficiencies of iron, vitamin B12, vitamin C, folate, vitamin K.
"If you suspect low thyroid function, but have had "normal" blood tests, you and your doctor may want to take a second look. A TSH of greater than 2.5 is not normal.