Hello,
First and foremost is the possibility of hypothyroidism. Hypothyroidism is a condition in which the thyroid gland does not produce adequate levels of hormones. It can cause all the symptoms that you are having.Then other possibilities are of abnormal levels of calcium, potassium, vit B 12or sodium in your body, diabetes, stroke,transient ischemic attacks,lupus or multiple sclerosis.
You can take multivitamins for some time. Also get your blood sugar and thyroid hormone levels tested.
If your thyroid levels are low as I suspect hypothyroidism strongly,pls consult an endocrinologist and start with the treatment.
Hope it helps.Take care and pls do keep us posted on how you are doing.
Again, CUSHING'S SYNDROME. Please insist on tests for Cushing's WITHOUT DELAY! INSIST INSIST INSIST!
If it turns out negative, then I would be very surprised, yet very happy for you. I would then encourage you to keep getting tested for other possibilities.
But, PLEASE start with tests for Cushing's.