"It must be difficult to diagnose liver parasites,
I think this is a reasonable statement. Additionally, if you were to suggest that you "feel" something there because of "migration" you would be looked upon strangely because you don't know what you're talking about.
"and really, how many doctors will think of liver parasites when people come to them with various liver issues?"
I think this is a reasonable statement. Very few. "Tests" are run looking in the wrong direction and you're given medication for your anxieties. I wonder how many people who've had gallbladder problems this is true, until they have an operation!
"I really hate ascaris – they are so invasive!" I second that. Usually I dont believe in hate, is destructive. But right now, deep in my heart, I feel it."
I agree! "Love thy enemy" doesn't apply to these creatures!