Well that blew my theory all to hell! and that is good news! Well, I would say that you have been given some very good advice on this forum including the link I gave you. For some reason you are not absorbing nutrients...or is it that you are losing weight because your bowels are impacted so therefore you don't want to eat?
I think that following Lapis' protocal is a good idea. How long have you been taking Shulze #1 and has that been effective in stimulating a BM? Has it stimulated peristaltic action? Have you taken any other laxatives?