questions on stones and parasites..

please help..a while back, i did my 1st flush..i didn't do the parasite cleanse successfully; so no stones..but: 2 or 3 days later; the grossest black, round Ugly bugs..w/feely legs all around it came out..about 7 of them..
also: these skin eruptions popped out..a couple behind the neck, and more on my thighs..all of them and just overnight..it led me to think that these were parasites 'trying to escape.'
the 2nd flush: i did to the letter..got about 30 stones, and more of those ugly same bugs... 3rd flush..to the letter: about 30 larger stones and maybe 250 tiny ones..More of these same bugs..
what are these things, and has anyone had skin eruptions such as this?
i brought both in to be sent to a lab; but they were a few days old..it says that the stones consist of plant material with debris and bacteria...
the stool spec. said no parasites.
where would these bugs, or whatever they are; have been...if they do not come out in a stool sample? thank you for any help you can give..if i saw a picture of this 'bug,' i would be able to recognise it... thanks again...judy