Background - I am 63,hypothyroid and retired. I’m tired all the time. Sleep all night, wake up tired. I’ve also gained weight. GP has done all the tests. Thyroid levels fine, thyroxine dose correct, not anaemic, liver/kidneys fine,not diabetic or pre diabetic,blood pressure perfect according to GP. I saw an endocrinologist privately. He tested my thyroid and cortisol levels ( for Cushing’ssyndrome). All fine. Any ideas?