Welcome, how long have u had these, i have found out i had them over a year ago,the first one that i spit out had knots in it, thats when i knew i have been taking different anthelmics , mine are roundworms, i have to clean them ev morning as well as other places, they grow so quick, you have to realllly keep at it. i belive mine started because of old fillings in teeth, which i still have to get 3 more pulled, They will come out if you sneez some pepper, put it under your nose, put vicks under yur nose, either one. Also use brown paper towel rolled up to really clean them out, and then u will know. but u will have to get at the root cause. Have u been exposed to your pets parasites, or is your immune system down ? Check your ph with aquarium style testor. It has to be at least 6. try a parasite cleanse to be sure, u can take cayenne pepper and see what happens in your stool, keep us posted as what u write helps a lot of people going thru the same thing.