Lesley,
Good luck with the oats. I have been eating no grains at all, and it really makes a difference for me. I understand that's not what you're looking to do - and I really hope oats are the answer. I have recently cut way down on the potato chips, and may take a few weeks off from white potatoes altogether. It's a good time of year for winter squash, which work well for me.
We had turkey soup for breakfast this morning. My husband says... turkey soup + coffee is kind of an acquired taste. I liked it
I had leftover 'meat cupcakes' for lunch - this batch was a mix of lamb and turkey. I also eat beef, duck, and occasional chicken.
Hope this gives you some ideas. I eat almost no 'products' of any kind, GF or otherwise. I don't look for officially 'GF' potato chips, though some brands are marketing themselves as GF (which, of course, all potatoes are anyway). Some of the fancy health or gourmet brands are actually far less tasty than good old Lay's Classic (and a lot more expensive). It ain't health food, I know... My husband's going to be traveling for work soon, and I plan to lock down my diet even further, by doing the Whole 30 (a Paleo-ish thing, not so different from what I do now - but no sweets, no wine - a few more "nos" isn't even a big reach at this point, and I'll be doing it with a friend who has different health concerns, so hopefully the solidarity will help us both). I'm going to commit to more diligent food-journal and symptom-logging during that time, too.
I am currently eating meat, occasional fish, veg, fruit, a very few nuts (pistachios work well for me), coconut or olive oils, black coffee, and wine. I mostly drink water, sometimes homemade seltzer (I know you can't do this). We also have smoothies a couple of times a week, with hemp powder and coconut milk (my most processed ingredient, I think). We use a variety of herbs and spices. I take a few supplements, am fortunate to be taking no medication except an occasional Pepto (maybe 1 or 2 a month?).
I really hope you're experiencing some relief soon - you just got a big dose of new information, but it seems to hold out real promise for symptomatic improvement... hope it's fast!