Suddenly allergic to all foods

I have been going through a 10 week miserable time of being extremely allergic to all foods except meat and bone broth. Everything else sets off huge histamine responses. Any help would be much appreciated. I have EOE but that's never been a problem. And I've never had allergies to anything. This just happened all the sudden and I can't get it to stop. Even the steroids aren't helping. Does anyone have any natural ideas that might help? I've tried quercetin. I've tried Dao. I've tried histamine blockers, antacids, nasal steroids, acid reducers. Nothing's working. There's got to be something that's unconventional that someone has tried and has helped.