Aperson feels tired, gains weight, and notices changes in there ,metabolism. which gland could be caused?

These are symptoms of hyperthyroidism, where the thyroid gland makes too muchthyroid hormone. * Feel tired or depressed, have memory problems, be constipated, have dry skin, or feel cold. These are symptoms of hypothyroidism, where the thyroid gland does not make enough thyroid hormone.

Dairy, grains, protein, fruits, vegetables