im my opinion, u may just need to warm up more before lifting, expecially skulls which tend to be hard on the elbows. my elbows bother me from time to time with skulls, expecially if i start with them but once im warm, then everything is good. if ur going to run deca, use at least 400mgs and make it a part of the cycle, but again i would wait till another cycle to use the deca since ur already 3 wks into it and deca stays in the body longer making recovery harder than say, test. try glucosamine and see if that helps and if not, be careful of what exercises u use.
muscle