<s>[INST] My brother has pain in the right side towards his back, he has been to A &E in Switzerland and our own Doctor who say he is constipated...he has has Movicol and I gave him some Dulcolax, he has now passed a motion, the pain goes and then returns, he is not eating or drinking much as food taste horrible, [/INST] Hi did review your concern. Such a pain described by your brother with constipation can be due to bowel problem, kidney problem, pancreas problem or vertebra bone problem. I would suggest an Ultrasound of abdomen to start with and a stool analysis as well as proper examination of his back and belly. Does he have any pain shooting to his legs? Also, if need be get a CT scan abdomen done, to rule many things out, however not needed at this moment. I hope this helps. Wish you a very healthy life ahead </s>