For the past week I have been experiencing a strange sensation in my chest. It happens when I raise my arms out to the side, for anything really. I get a pulling sensation, mostly toward the inner part of my pecs, toward my sternum. It feels like a cross between something being pulled and a spasm. If I do it slowly, I am able to then raise my arms and move freely, as if I stretched it out, if I raise an arm without thinking, it can be painful. I have not injured anything, I don't know what could have caused this. Only other way I can describe it.. is like some small muscles in my chest ball up when i stretch it out. I have been on 500mg test e a week, Im about 5 weeks in. IDK if that could have something to do with it or not. Any help appreciated.