Hi Doctor. I had a few days ago, and have had in the past, a few very long, at least 6 inches or more, stringy pieces, come out of my colon before my bowel movement. I don't know what color they 'were' because they are covered with feces, so they are now brown. I saved them in a baggy in the fridge. I have tried looking it up, but am confused as to what particular type of parasite, if any, they are. Please help. Stomach pains also, but that is not unusual, so it's confusing. I am 57yr old, 110 pds, and have irritable bowel syndrome and intestinal problems as well. Otherwise, quite healthy for my age, beside anxiety and such.