Usually if you feel bad it is die-off; I do get run down every now and then because of poor sleep…sometimes a few symptoms return for a short period of time when this happens. So you got more strict and started to feel bad eh? Well it sounds like the candida that was living on your older less strict diet cannot adapt very well to your new diet and thats what is going on. If you tried a new antifungal, this could be the cause as well. Our diet can cause a rather rough transition to the body.