DE, How about the turkey, rice, soy milk diet for a few days to rest. Allergy specialists sometimes recommend that b/c it is bland, highly tolerable, then advise patients to gradually add foods one @ a time to identify the problem foods. Protein drinks can firm up the bowel. If that's not what you want, maybe stay away from them for awhile. If stool firms up too much it can act as a "plug" so to speak causing liquid waste (diarrhea) to back up behind it, thus the constipation/diarrhea cycle. A real challenge to manage. Do you take Vit D to help manage inflammation or flaxseed oil capsules to aid in digestion? My DM suffered from IBS long before it was really recognized by the medical community. Colitis different I know, but she had very similar symptoms as you. Difficult to manage to be sure.
It can be a real Catch 22. Bland diets easy on the gut, yet problematic due to lack of fiber, so really have to play around w/it, which I'm sure you've done many times.
DSS,35YO,unresect mCRC DX 7/'14,lvr,LN,peri,rib
FOLFOX+Avstn 4 Rnds d/c 10/'14
Gone From My Sight 2/20/15
Me:garden variety polyps + precancerous polyp
Carergver x2 DH,DM dbl occupancy,'03-'10
DH dx 47YO mCRC,'04-'07 fried x HAI
DM dx CC 85YO,CC,CHF,stroke,dementia,aphasia