<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi- just recently I had developed a few issues that leave me concerned. Issues including; change in vision while looking at the same time almost like its becoming double? it is extrememly hard to explain, shakiness ...EXTREME... in my hands about an hour after I wake up and lasting till I go to sleep. My legs have now also begun to shake very bad to where i cannot walk down the stairs without almost falling from being shaky and becoming dizzy. I am very nauseous, no bowel movements, ZERO appetite and if i do eat it makes me even more naeusous. Every other issue in the book I am experiencing out of nowhere. What could this be?  <response>: Hello, Your symptoms could be related to a metabolic disorder. Myasthenia graves cannot be excluding too. Coming to this point, I would recommend consulting with your general physician and performing some tests:- A resting ECG-Complete Blood Count for anemia- PCR for inflammation- Kidney and liver function tests-Thyroid hormone levels for thyroid gland dysfunction- Cortisol plasma levels for a Chat Doctor. Hope I have answered your query. Let me know if I can assist you further. 