I'm sorry he's so uncomfortable

I think a broth diet is really the way to start...give his body a break and then when the results all come back you know where to go from there. Gelatin and blamd broiled meats should also be soothing...basically the "SCD Intro Diet". It also gives you a place to start slowly reintroducing items...and easily pinpoint reactions. I know itshard, but it might get you to some answers sooner. Good luck and keeping my fingers crossed you get results, and ANSWERS soon!