that sounds hard...and I'm sorry, but i think it's also perfectly normal, if that's any consolation. There are layers of toxins and not all of them are physical. If you've done any liver flusghing, you might be familiar with the way emotions can come up with that, old memories, etc...It all passes. Have you tried EFT? It's wonderful for the emotional ups and downs, pains, even panic...whatever. A number of people on this forum would swear by it. Another thing is, it was a full moon yesterday...
and when you fast on water, it's all about the water. :-) The moon pulls at the ocean, and at us: we have tides within us. It will probably get better soon.
hang in there.
PS, just saw you've done Two 40 day fasts in the past. Big! congrats on that.