SLEEPING WITH YOUR DOG!!!??? You do know that dogs lick their anus to clean themselves, and that the anal-oral route is THE way of parasite infections. My God you must be hyper infected...you have a long way ahead of you. Wash ALL your clothes in high temperature ASAP.
Meanwhile try to restrict your dog to EITHER outdoors or indoors ONLY. There are 3 million known parasite species, the vets only know about 100 and can hardly treat even that.
You dont need prazi as you dont have flukes and have already done prazi.