Everyone with significant flatworm infections have seen these gigantic flukes. I had one, could not believe it.
Your infection seams complicated, with mixture of round and flat worms.
Be prepared to do some long term cleaning.
Large scale supplementation, pH management, enzyme support, liver support, kidney support, and cycles of antiparasitics to peel back layers of the parasite onion are required till you achieve final success or are left with one that requires maintenance.