1 side bigger than other????

[BloodyMule]

Question... My left peck is MUCH bigger and more defined than my right peck.. What could cause this? I have tried what a few experienced guy's at the gym have told me. I've been using dumbells for most chest exercises, to ensure one side is not stronger than the other. I have reduced rep weight, to ensure proper form. I am certain that neither side is stronger than the other. But, seriously, this is pissing me off! I don't know what else to try? Help.......

PS. Now that I am into the 3rd week on my cycle, I am really starting to get worried about this problem. It's starting to be real noticable....

 

[GenetiKing]

I'm not a big advocate of it but...

Try some unilateral training if it's that bad.

Do a few extra heavy sets on cables or pec deck for the weak pec.