Pain question

I my first 2 weeks I didn't have any pain on my left side. But now when I move around randomly I will get a dull pain. Like when I squat down or sit up. I really can't tell if it's stomach pain or abdominal pain. It's not over where any of my incisions are. Also, when I yawn my stomach spasms. Is that strange? Anyways, just wanted to see if anyone else had this kind of thing? Is it because I'm just now able to start feeling my stomach whereas it was numb before like people describe from the surgery? I plan on asking my surgeon tomorrow but just thought I would ask here. It's on my left side just below my rib cage.