Did you know that the thyroid gland influences almost all of the metabolic processes in your body. Having too much thyroid hormone is a condition called hyperthyroidism. Having an insufficient amount of thyroid hormone leads to hypothyroidism. Both create effects that can be problematic to your health. Hypothyroidism makes cause these symptoms: feeling tired, weak, or depressed, dry skin and brittle nails, not being able to stand the cold, constipation, having problems thinking, heavy or irregular menstrual periods. Hyperthyroidism may cause symptoms such as: feeling nervous, moody, weak, or tired, your hands may shake, your heart may beat fast or you may have problems breathing and have unexplained weight loss. Call your Loveland Family Medicine doctor if you are experiencing problems.