Re: heavy infestation. help please.
I think the most important is that you try not to panic! I think the stress can make you feel worse. Try to keep calm somehow. I have never tried the praziquantel pills for fishes but some people here did. I have read that niclosamide can also be used for tapeworms, but i read that the clinical efficiency was better with prazi. I am not a doctor though :) so forgive me if i am wrong.
It might take a longer procedure to get rid of the infection, so keep it in mind and be strong. Also just read today that adjusting your diet and your lifestyle is crucial too, because the infections return easily if your body is not in balance. But i think it is important to gather information before deciding what to take. Of course you can try to buy something online but maybe try and do a search here and see what other things might help for tapeworms. Any part of it you can manage to break off, should there be a next time, you should preserve in alcohol and send to a lab.
So don't panic, try to accept the situation and see from there! For me, after realising i have tapeworm(s), took some 2 weeks before i managed to keep cool about it (so far not yet seen it in my nose or my throat though). I now try to meditate. We often freak out when we actually see these things although they could be inside of us for years without knowing.
Also maybe try to google a naturopath with parasitic experience, could be some support if you get nowhere with doctors.
I hope you get well soon!