GI complications after surgery

Surgery is almost 7 weeks behind us now and we are dealing with a host of issues.  Auggie has not really been eating for about a month now. He got constipated and started holding his urine.  We have been in to see his gastroenterologist and we did a whole treatment for constipation including enemas, suppositories and miralax.  We feel like he is better but the appetite has not returned.  In 2 weeks he will have an endoscopy to look for obstructions, inflammation and anything else that could be wrong in his upper GI tract.  They will also do a biopsy to check for celiac disease and the presence of eosinophils - the little buggers that show up in your intestine when there is a food allergy.  We hope this is just a slow recovery after being constipated and nothing more serious.  He is also having his follow-up MRI 1 month sooner than planned to make sure everything is okay there.  We're also planning a renal ultrasound and a modified swallow study (x-ray movie of him swallowing)