Was this long skinny brown thing a parasite in my vomit? If so, what kind?

I vomited today. In it was a couple of these long brownish (not white) thin things. One was pretty long, at least 5-6 inches long with the diameter only about the width of the tip of a sharpened pencil. Also was some greenish flecks and h. I know this is gross, just trying to see what it is. Trying to see if the specimens I was seeing was parasites. If so, what kind? How treat? etc... Thanks ahead of time for any valid answers/guesses. I have been feeling sick.