Wow, that sounds like you covered all bases really...I guess the only way to see if it works is to try it everyday for a week or two. And hey, 1 year, way to go ;D!
I think the only thing that could cause this is a tapeworm. The pumpkin seeds effect them the most, I believe. Out of all the parasites, they have to be the most difficult to get rid of (I'm sure others might say candida), or the most horrifying...yikes!
I have seen some flukes in my bm's lately and I think either the LBB or the spice4life is what's killing them. And I haven't even BOUGHT de-wormer yet!
Maybe we should ask Humaworm if it sounds like a tapeworm?