Food poisoning doesn’t go away nearly that fast; at least no type of food poisoning I’ve ever heard of. Generally, the victim is lucky to be better within 48 hours, and the sickness from certain types of food poisoning can last as long as ten days.
My money is still on the die-off effect due to the strong garlic. I know you wrote that you had been on “the Candida diet” for two months, but there are lots of different Candida diets. Was it the one on this website, the one on the forum, or a totally different one?