I'll add soy protein and whole food vitamins to the list of "try it" and see where it helps you. I added soy drinks when I couldn't swallow regular protein options (meat, nuts, etc.). Everyone's body needs aren't the same; so be careful with anything suggested here.
Also, flares & meds are different too; keep a diary of your symptoms. That way you can see a pattern (if there is one) of what works and what may not work. Someone here suggested that for me & it really helped.
Good luck!