I have very mild pain in my right lower abdomen from a long time now, and it's a wave like feel once I  a while more than pain, like a muscle soreness type thing. I don't know if I should consult a gastroenterologist or a gynaecologist. My periods are pretty regular and I don't have any other issue relating that, I have a healthy lifestyle. I do have stomach issues like gastric problem and indigestion every now and then. Just want to be sure if this is an muscle issue, stomach issue or some underlying problem that is ignored. Any suggestion would be very helpful.