The first step is to switch from large meals to frequent small meals throughout the day, avoid fiber and adapt a low fodmap diet (search online there are a bunch of lists). There are motility meds that you can try, although you should weigh the pros vs cons because they can have some really nasty side effects. If you are still symptomatic after lifestyle changes a J tube (NJ, GJ or J are all options) for enteral feeding is next. There are also things like Botox in the sphincter that goes from your stomach to your intestine, as well as a gastric pacemaker to stimulate digestion. Personally those things I am not doing/won’t do because I have heard they have a very low success rate, but they are still an option.

Try, eating smaller meals, medication, low fiber and fat, soft or liquid foods may be easier. If it doesn't stabilise then they will probably admitted you to try feeding tubs

Yes I have a GI. And insurance doesn’t cover a dietician.

Hi there! I was recently diagnosed as well. I'm actually having the opposite problem, weight gain. I'm unsure why because I'm eating less than I used to due to pain and nausea. I do take rabeprazole twice daily, metoclopramide as needed, and ondansetron as needed. They do help a bit. However, medications help everyone in different ways. I hope that you find answers that work for you!