he needs to be examined by the surgeon. it would not be possible to accurately diagnose him blindly over the internet. there are many many possibilities like post-surgical adhesions but it will take a careful history hands-on examination and perhaps some imaging studies to get to the bottom of these troubling symptoms.
my husband got a appendectomy about a year ago and has been going thru some abdominal pain again whats wrong? . he's been having similar abdominal pains vomiting and nausea. he's been taking alka seltzer to help the pain.