Thanks for the responses guys, and for ideas on what the leg pain was. One thing, though. Back in my drinking days, I used to occasionally get a similar leg cramp, like the day after a night of drinking. The pain was in the same spot, I think.
Yes I'll probably transfer to a straight up Water Fast after the 2-week Metagenics program is up. The product is just free-form amino acids, lots of glutamine to help heal the gut wall.