So I have a tear in part of the muscle in my front portion of my shoulder.... tendonitis to go along with it, also tendonitis in both forearms. Doc/Sports Specialist put me on Prednisone and I splint my thumbs and shoulder at night. Never taken Prednisone.... thought hey I'll just focus on legs and core till the rest is good. Nah this stuff if making my legs tingle then go numb and repeat.. wtf, interesting stuff.