Help me to identify my intestinal parasites

Please help me to identify this parasite. It's white and dense. It comes out alone in the morning sometimes.
I assume this is flat worm, it looks too complicated for a round worm.
But what kind of flat worm? Is it fluke or tapeworm?
It lives in intestine and makes my anus itchy. I have permanent diarrhea. I have temperature 37,2 everyday.
I tried lots of drugs including praziquantel, niclosamide, levamisole, mebendazole, albendazole. But nothing fully cures it.
Praziquantel slighty reduce symptoms. I drink 0.2g of praziquantel everyday for few months. I enlarged the dosage to 0.3g.



Here's a link to upload .mov video file with the parasite:
https://dropmefiles.com/pr3ea