This sounds more like Lyme disease. Lyme disease comes from being bitten by a tick and it progresses over the years so you may not necessarily remember being bitten. Lyme disease is difficult to treat and not all doctors really know what to do. Lyme disease however is far more treatable and can be cured. There are early symptoms like a rash that comes within the first few weeks after being bitten by the tick. And there are mid stage symptoms and then there are symptoms after the disease has progressed for years. If what you have is Lyme disease it sounds like you have more of the middle or later stages of the disease. I’m not certain where you live but depending on where you live finding a doctor that can test for Lyme disease can be more or less successful. The East Coast seems to be the best place to find doctors that can deal with the successful eradication of Lyme disease. I’m sure mayo clinic might also have some very good treatments for Lyme disease - should you discover this is in fact what you have.