I have been experiencing for the last six months to a year, painful muscle cramps and spasms in my lower abdomen and right under my breasts. It used to only be on one side of my abdomen, the lower right, now I am experiencing them on both sides of my lower abdomen and at the top of my rib cage under my breasts. This happens if I cough or move a certain way, and today while riding in the vehicle, I leaned forward and that's when I got the muscle cramp under my breasts. When this happens I have to stretch myself as far as I can to get it to release. The ones that happen in my lower abdomen, cause me to have to stretch and arch so far back, almost into a bridge formation. When the muscle finally releases, the spasms or twitches remain for approximately 1 hour afterward s. Does anyone have any idea of what is going on? Could this have come from my recent weight gain?