I am getting that pain too, and i know bubba has his bum shoved right under my ribs. I get awful back and shoulder blade pain from it,, and when it gets unbearable, I get sever stitch type pain in my ribs on that side. The braxton hicks make it agravated, and the only relief,, as even breathing hurts when i get he stitch pain,, is to either stand leaning over something, or get on all fours and do a cat type psition stretch. This tends to relieve most of the pain,, even if only for the time i am in that position. A nice hot shower with a hard spray helps too.

Oh, btw,, I have large boobs too, about a E cup