i started having pains in my elbows a few months ago, although i would not feel it during my workouts. it didn't seem to correspond to any particular workout (i.e. chest day, back day, etc.), but i do play baseball every sunday.

the pain would seem to randomly appear in either one, or sometimes both elbows when i woke up in the morning. one day i was at the batting cages and i think i hyperextended my right elbow, i took about 2 weeks off from chest workouts (it only hurt when i extended my arm).

since i started doing chest again i have been doing more reps, less weight (225x8 for 3 instead of 235x6, 245x4, 255x3). I also have only played 1 baseball game since then. I don't know if the weight was just too hard on my joints and that wore them down or if it was from poor form in my baseball swing, but i haven't had any pain since coming back.