As someone who doesn't want to take drugs, I well understand your reticence.
Have you given any thought to:
1) LDN - low dose naltrexone, almost no side effects and very good results
2) Probiotics, VSL #3 is great
3) Adding slippery elm powder
4) which diet are you on? Perhaps you should start a food journal, no?
5) Had your vit. D levels checked?