What Causes Excessive Sweating Along With Muscle Cramps In The Legs?

Hello! I have raynauds, hypothyroid, dystonia, fibromyalgia and prediabetes. I am also have really bad problems with urge incontinence (even though I take two vesicare a day), I am loosing my sense of taste, I sweat profusely a lot of the time (when no one else is), the muscles in my legs and arms stay contracted for hours and I get bad “charley horses. My pain doctor thinks I may be getting Parkinson’s disease as well. I have a head tremor (yes,yes movements) and my Hands shoot out which makes typing hard. My skin will also itch excessively. Do you know what I have? My walking ability is slowing down and I can’t walk far without having horrible cramping at night