It is hard to tell what it could be. It might be Tapeworm segments as you said but the one on the top right is certainly not. What have you been doing to get these out? Any challenge tests, such as castor oil, pyrantel pamoate, enemas? It might help you finding out more about it. Stool and blood tests or any medical "assistance" are unfortunately completely useless. All the symptoms you listed fit the parasite picture but it could be anything, so you need to keep doing different cleanses to get a clue. As far as i have heard from many people, Tapeworms are not easy to get rid of with a natural approach. Praziquantel, pyrantel pamoate and DEC (in higher doses) work on them best. They usually do not cause any symptoms on their own so you likely have other parasites in the background. Like any other parasite, they modify your immune system and so best to get rid of them.