For 48-60 hours I havent had a bowel movement to speak of. I am experiencing a pressure/pain sensation in the rectum, the urge to have a bowel movement every 30-75 minutes, the feeling of having fecal matter at the anal sphincter which will not come out, no matter how hard I strain, and if i feel my rectum while trying to strain, it feels like 1/2 cm of bowel is exteriorizing, which dissapears once i stop straining. The only matter I have been able to excrete is mucus, sometimes streaked red, and 2 watermellon seed sized fecal masses.