this happens to many bb's around the world.
I've been told that the main reason for this is that our heart pumps fresh oxygen into the left part of the body first, which can make the right part lagging. I'm having big problems with this. I'm going to try unilateral training, but that wont help for my uneven abs. The abs on my left side is so much bigger than the right, which actually makes me not wanting to have a visible 6pack. So fu***** frustrating!!!