Hi. Sorry to hear about your problems. I do feel you will benefit from probiotics but if that is not an option I read that garlic will help replace some of the natural flora in the intestine.
Also, I think possibly you are experiencing detox reactions and or a buildup of toxins. If you are bowel is sluggish what you need maybe either Barefoots lower bowel balance or Dr. Schulze Intestinal formula number 1 and number 2, must start number 1 a week before number 2, or humanclanse from humaworm to move things out of the colon.
All the above are on curezone and you can write and ask for advice as well. You might also try the bowel support forum.