I would suggest you read up on the special carbohydrate diet and put yourself on the intro diet for three days, and then test the whole thing out for three weeks. It was invented for children with Crohns, but it also helps in patients with IBS, Gerd, Bacterial overgrowth, fungi and parasites (to a small degree).
Experiment a bit and see if honey makes it better or worse, and the yoghurt, etc. It will not give you any diagnose, but it can give you some relief.
It is pretty cheap as well, and it tastes great. If you get flu-like symptoms during the first few days, do not panic, it means it is working. Since the first thing you do is chickensoup with carrots, mincemeat or soup with pumpkin or zucchini, pumpkin pie without flour and lovely grape jelly, it is easy to swallow, too. For information I'd suggest pages like "scd lifestyle", "scd, gluten free and veggie" and "pecanbread". SCD lifestzye has motivational podcasts you can listen to, and send their version of the intro diet for free. Their book is more for someone who has never, ever cooked before, and has good pictures.
Good luck!
Welcome to the gastroenterology community! It sounds like you really need an endoscopy to make sure there isn't something serious going on.