i'm sorry to hear about your ordeal as I can relate as I have had similar mystery ailments like the one you have mentioned for the past 8 years. I would recommend a follow up with your family doctor and request an MRI
of your brain. These sound like potential neurological symptoms so it can't hurt. Additionally I would request a blood test
to test your vitamin, and electrolyte levels. Vitamin D, potassium, and magnesium
and other vitamin deficiences can wreak havoc on your body. Good luck to you and I hope you are able to get some answers!