That's good that you're still open to it. You're the only one has said so thus far which makes it look like not a lot who think they have parasites are open.
I don't know what those long things were, but if you look at it from my perspective, many people said they have shat out long things like you describe and assume they must be worms, but NONE have ever gotten them confirmed, so what's someone on the outside supposed to think when no one around here can get objects confirmed that should be so easily be identifiable?