Tapeworm Question

I have been battling parasites, in particular a tapeworm, for 3 months now with cleansing and probiotics and am having significant success. I am starting to get out long strings that are a foot long each. I don't know how long I have had them as I just started noticing in January 2005 that my colon and intestines were not right. About 2 years ago I started gaining weight for no reason and have gained 20 pounds since then. I exercise 5 times a week and take all of these things to rid yet I can't seem to lose any weight. I thought Tapeworms made people lose weight, not gain? I'm just trying to figure out why this is happening. Thanks!!