Re: Undiagnosed pituitary disease
You have all the symptoms of a pituitary adenoma, a small benign pituitary tumor that is secreting excess prolactin and causing your other pituitary hormones to be deficient. You need to have an MRI of pituitary gland and be under the care of an endocrine specialist. If the tumor is small and not causing headaches or visual disturbance it can be treated medically by suppressing prolactin secretion and supplementing your adrenal, thyroid and estrogen hormones. I would bet your thyroid dose is inadequate, and that is what is causing the weight gain. Please see an endo, get an MRI to confirm adenoma and serve as a baseline for its size, and aim to get your TSH around 1, to stop the weight gain. You are also on a rather low dose of hydrocortisone, and may need more to feel and function at your optimum.