Through sheer magic, I’ve only had two or three real hangovers in my life (despite drinking way too much many times more than that), but it makes sense to feel hungover with die-off, since some of the same chemicals are produced. It’s not a bad idea to give yourself a break from antifungals once in a while if you’re feeling really terrible. It lets your liver catch up and gives you a reprieve for a bit.
My throat is fine now, though I still have a small amount of thrush. Slowly, slowly.