It seems the stuff you took did scare the worms a little... :)
In your situation I would get a good parazite cleanser and finish the job. I don't think the worms come out alive when you take some good, strong stuff. People talk about Clarkia and Paragone a lot, maybe you want to give it a try.
Hang in there, I know it must have been some freaky experience but don't be afraid to do a really throughout cleanse - it's better when they are out.