It sounds like you have a good herbal protocol. It takes much longer to kill the scattered ones, and they will still lay eggs in the colon even when scattered. They come out in nests so not in every bm. When theyre quiet i believe thats when they are mating. If the wiggling gets too bad u can wear a tens unit to temporarily stop the wiggling (a tens unit doesnt kill them), the tens 7000 unit is only abt $24 on ebay. There are a couple people trying the scada rsg-4 zapper that may help also and costs abt $150.