I had last year as a problem that I suddenly had a belzige hand and fingers, everything was very weak. According to doctor direction Kaparttunnel was typed what ansich's a pinched nerve. I subsequently informed me and let of the Powerball. I have this then actively eingestezt and after already two weeks it was getting better. After 6-8 weeks my hand and fingers was like before. It was with me even so bad that I could not even rumdehen the front door key. But this is just me, I do not know if this other also helps.