Anyone have muscle spasm in there a$$ during injection. Not while inserting pin I'm talking during the loading? I never had a issue with it in my years but since I started doing heavy dead lifts and doing deca (this is my first time on deca) I have notices my a$$ muscles are very tight and i get a dull ache during injection and sometimes it takes a while before the plunger will even move like its locked up. Idk just askin