consensus is that they [fast runners] are Toxocara canis (dog roundworms). Albendazole should have gotten them, but it has to be chewed into fine dust and taken with high fat food for it to absorb. I did the [28 days on 2x day @400mg then 10 days off ] X 3 cycles. There could also be dwarf Tapeworms or maybe flukes. Or all of them. I also heard Miracle-Mineral-Supplement can help. Don't count on medical establishment for any help on this issue. I used a TENS device with some success.