"Maybe these are from pork. I started eating pork again.I always make sure its well done."
You continue with erroneous information and misleads.
To date swine have not been implicated as a reservoir.
Other than humans, cockroaches have been.
Learn more for crying out loud before you try to give any more advice here.
Viable eggs were found in sludge at a water treatment facility in Czechoslovakia.
This is not to imply that water systems in the U.S. and U.K are contaminated.
I am not up to speed on measures employed so can say no more on this subject.
If you can't use a microscope maybe find someone who can and knows how to measure what they are looking at.
Do a tape lift off of you know where when the itching is intense.
Verify or not that any eggs found are of enterobius vermicularis.
If they are then you know for sure that is a problem for you.
Then it comes to vectors for reinfection.