AVOID†XYLITOL!!!† Xylitol can wreak havoc on your good bacteria.† Return† it and get† your $$ back. Oregano oil can be harsh for people that have a sensitive gut.
Probiotics on a empty stomach. Chlorella in between meals. Might be doing too much at once to pinpoint what is doing what. Some multivitamins can be hard to digest and the B-vitamins can cause some issues with people.