Sorry... I should have been more specific. Since your current doctor doesn't know what to do, go to a DIFFERENT doctor. If you can, go to a neurologist or a rheumatologist. These specialists are more likely to recognize your symptoms than a general practitioner.
I hope you find answers soon!
There are a number of conditions that could be causing your symptoms, including neurological, rheumatic, and even infectious diseases. Definitely go to your doctor as soon as you can.
I'm not a Doctor but I think you need to see a Neurologist. It is a serious issue make sure you're going to the right person, specialized and expert with your type of issue. There could be something wrong in the brain or neural transmission.
possibly book two separate visits one private and one in a large hospital, don't waste any time. Good Luck.