Oh good lord! I’m so sorry you’re suffering so. You mentioned you’re seeing an Endocrinologist, please have them test your Thyroid levels. You could either have hypothyroidism or hyperthyroidism or Hashimoto’s. I have hypothyroidism with Hashimoto’s (autoimmune) disease and am being treated with Synthroid. I had brain fog and began gaining weight rapidly. It could make a big difference in your body if you have either of these and are not being treated. Good luck!