Hi there, Thanks for your query. More information is required, apart from physical examination of the abdomen. However, from the available information, there are just two possibilities:- 1. The movement is that of the right lower abdominal muscle (movement is called fasciculation) due to irritation/compression of the supplying nerves as a result of bulging disc/collapse of vertebra. MRI of the mid-spine will detect the disability, if present. 2. A pathology or a growth in the Caecum (junction between small intestine and colon), obstructing the flow of food. CT Scan or Colonoscopy would rule out/diagnose this condition. Consult your doctor and apprise him of my opinion. I am certain that he will agree with me, order required tests, and- based on the reports- will prescribe suitable/modified treatment as advised. If you find my response helpful and informative, do not forget an “excellent” (5-star rating) to my answer, to ENCOURAGE ALL doctors- engaged in social service- to render sound advice to the FREE queries. Take care Dr. Rakesh Karanwal