T Nation

bicep twinge when Benching

Recently I have felt a sharp twinge in the upper inner part of my bicep when bench pressing. Has anyone else experienced this? What is it? I gave it a couple of weeks off and have come back to other exercises slowly with no pain so far. The thing is I was getting ready to start a cycle with Winny,Dbol and Tren Acetate. I have heard Winny is bad for the joints. Will this be a problem? Thanks in advance.T-