Had a routine colonoscopy 6 days ago. Have had bloated, full feeling since, with minor pain in abdomen, lower back, feeling pressure - especially when I urinate, with feeling of needing to use bathroom. Have had several small bowel movements, but don t get relief of the feeling of needing to go. Last couple of days pain increasing some - now pressure and some pain in rectum and uncomfortable when I sit down. lower back pain increasing today.