I also suffered from endometriosis, I read about the pinworm causing this in the book The parasite menace by skye weintraub. Hulda says that flukes can cause it also. We just plain need to cleanse and get rid of all these critters.
Tapeworms, hanna kroeger makes a combo called rascal. I have used rascal several times in the past, but never noticed an entire Tapeworm being expelled.
I also have the sharp piercing stabs almost as if a worm is biting me from the inside, I squeeze or push on the spot to get the worm to move.
Ascaris go to the rectum at night for liquid, sorry I can't remember where I read this in the past, you can really feel these because they are quite large and thick. When I feel these dancing in my rectum I do a quick tea tree enema (I buy the throw away enema's, dump out the liquid that it comes with, add a cap full of tea tree and fill with warm water, sit on the toilet and squeeze the enema bottle as fast and hard as I can, then retain it as long as possible, This works great for me, I always get 3 to 5 Ascaris out the next morning, so does my sister now. If I don't do the enema I don't get any out with just the pills. I only do the enema when I feel the dancing in my rectum, which is usually after taking L-cysteine or bee propolis for a few days.) I got out 32 Ascaris last month, from 1" to 8"'s, I take their picture, (but they never smile for the camera), I have been to doctors for parasites (one was an infectious disease specialist that was known for treating parasite infestations)so I am getting all the proof I can for future visits, when I decide to go to a doctor again, which won't be in the near future.
Worth a try, I have tried a lot of things that have worked for others here, some have helped me and others haven't. I just keep trying things to see what will work best for me. I really feel the worms that I feel moving under my skin are Ascaris also, just my opinion from when I feel the scurring, what comes out of me, and not feeling the scurring there anymore. These worms have to be fairly large to be able to feel them as well as I can.
keep trying different things and keep track of what works for you, heyjude