You are going to have to eliminate what you are taking to isolate the problem. SF722 is pretty toxic, I took it and know a few others and all had some bad reactions to it. It comes from the castor bean which has some chemical that is questionable. I think a better alternative is caprylic acid or monolauric acid which both come from coconut oil. These have broad spectrum killing power.
The ph balanced vitamin C is better than ascorbic acid.