<s>[INST] For the past few days I have had random pulling movements in my pelvic area. Its painless and like a thump, only inward.  You can see my stomach move inward quickly and then return to its normal level.  This can happen 2-3 times in a minute but then go many hours before another thump happens. [/INST] Hi.Thanks for a good history. This is suggestive of an intestinal obstruction of sub-acute variety and you need to get investigated in the form of Standing X-ray Abdomen and enteroclysis if required. You may need to know the diagnosis to decide whether you need an medical treatment or surgical exploration. </s>