Hello. I've been having a feeling of fullness in my anus. Also, some anal pain and pressure, like I need to have a bowel movement. One week ago, I had some bright red rectal bleeding. This was the one and only time. I'm also having some mucus in my stool. Bouts with diarrhea, frequent and small amounts. I just finished a zythromax antibiotic treatment for an ear infection. Does this sound like proctitis? I went to a gastro dr. and he didn't find anything during a digital rectal exam. I'm scheduled for colonoscopy May 19. Until then, I'm trying to find answers to set my mind at ease. Thanks