i saw ur post and decided to reply, been having the same problem, feels like a phone vibrating in my stomach, and happens very often like every 10mins or so my lower left stomach vibrates for like 15secs. for the past few weeks this has been happening, been burping a lot lately so i was thinking it could be gas, but i've decided i'm going to try a de-worm treatment from the pharmacy. damn....i just realised sometimes when i squeeze my stomach i feel some pain...hmmm.... really need to get this shit outta me, if it's worms that is.... let me know how you are going with ur prob as well, what u did and how it's progressing?