I'm right side dominant. I can use my left hand for some things but my "preference" is the right. Most of my symptoms occur on the left side. But, I will note that my right hand/arm is severely impaired (97% impairment) per testing but I use it normally as anyone else who is right handed would. My brain must have rewired something and fairly quickly as I never really noticed the damage other than tremors but I have that in both hands.

I have only had rightsided trouble with my leg during flares.

Kelly - I get the itchy back thing too but I think mine is just dry skin. A soak in an Epsom Salt & olive oil bath helps resolve the itching for me.