Geez, did you ever get a response? I just moved over here from the Master Cleanse Forum , did 48 days on the MC, now doing ten of juices (they just call me superwoman--I AM INVINCIBLE!)
Anyhow, I hope all worked out well for you. Sounds like you were in a detox crisis, and broke on a downer. Continuing with minimal, light eating should have brought you around eventually.
Hopefully this has not soured you on cleansing! Crises are definitely a part of the program, but the UPS are well worth the effort!