At this moment in time nothing else should be ruled out.
Non diabetic hypoglycaemia could be the cause but you need the tests.
If you have hashimotos or issues with thyroid, the hormone overload is awful. Has your doctor done tests on a possibility that you have one thyroid being hyper, and the other hypo? Are the meds helping?
Your doctor should have referred you to a specialist, unless he doesn't know who to refer you!
I can't exercise very muvh, but I have to walk, I have to cook, clean and my garden. Try and do more!
I have anxiety issues myself and it's hard to get motivated, but you do need to do more!
Are you getting counselling?