That kind of sounds like me. I eat really good,exercise every day, but had to have something sweet everyday. I am only 2 days into the MC, but I feel great.
However, I was on Paranil ( parasite program) before I started (not intentionally - it just happened that way) and that took my cravings away. I guess I had parasites. I have not craved sweets in weeks. I am planning on getting on Clarkia after I am back to eating again.
I don't know if your symptoms are some kind of detox symptoms. But if they scare you and you decide to break the fast, try an anti- parasite for a month and see if it helps with your cravings and then get back on the MC. I could tell a difference within days.