I have found very thin, long, brown worm-like things once in my bathtub and again in my toilet. If I look closely there is the long strand and then small fiber like hairs on the worm. It is a medium to dark brown color and I found it in the toilet after a tough bm. My anus now itches and I am passing a lot of gas. I am afraid this is an intestinal worm but cannot find pictures like what I described online