Thanks to everyone for their responses. I cut back some on the psyllium. Hubby and I both figured out pretty early on that we were craving a *lot* more water, so we've been drinking like fish and all in all I'd say the whole thing has been a success for both of us. Seeing all sorts of interesting Monsters From The Deep etc.
I had a lot of energy yesterday and was in an extremely good mood. Today has been about the same, except that I'm beginning to lose energy and get a bit shaky, perhaps from lack of food. I've eaten just fruit and some brown rice, still drinking tons of water, senna tea and green tea.
Again, thanks for all your ideas. We'll probably just cut back to one dose a day, with much less psyllium, and do that for a couple weeks to see what happens.