I went to the bathroom today and when I went to wipe myself, I noticed the tissue was covered in what looked like black stool. I looked in the toilet and noticed that there were several stools all dark brown in color. Only when I wiped myself was it black in color and sticky looking itself. The other stools in the toilet were definitely more dark brown than black. Could I have an upper GI bleed? I have been taking Pepto on and off for acid reflux.