Hi, i have recently been dealing with this burn on my upper left ab, i havent been doing workouts for a while because ive noticed this is bothering me and it will not go away its like a burn from working out only in my left ab and it tends to burn if i sit or if im driving i have to almost stand up in my seat for the burn to go away, but yet i have not done workouts in a while to see if it will go away. also i can't sleep in certain possitions because my left ab starts to burn if i sleep side ways or if theres a strain of it, but i can still workout its just a burn that will not go away.