I have IBS, but i'm dealing with some very weird symptoms and soon u'll see what I mean. Regardless, I have had tons of tests with no results. I'm going to link to the pictures and please tell me what you think. I have no idea what this stuff is, thanks.
http://i.imgur.com/IkMmrJG.jpg
http://i.imgur.com/IkMmrJG.jpg
This last pic is a bit different, it's like black stuff.
http://i.imgur.com/oJzBRPr.jpg