I woke up this morning and after a few minutes, feel pain at my waist, where you would put your hands with bent elbows, on the side, a bit toward the front. I had terrible gas yesterday and some diarrhea this morning (I have IBS-D). Is this common? I once had a kidney stone so get terrified when anything on the side appears but that pain was more in my back and I had other symptoms. I get this pain on the right side also every now and then. It isn't constant, it stops and starts for a few minutes/seconds. Could it be gas? I am also burping a lot and passing lots of wind. Thank you.