Pressure. Pressure or a "valsalva maneuver" puts stress on the lumbar discs.
Reasons for pain on my left side under the ribs and backpain which cause numbness on the leftside head neck hand and leg and frequent bowel movement?
Multiple systems. Those are a lot of symptoms. You should start by seeing your primary care physician to make sure that there is nothing systemic going on. After that a neurologist or physiatrist can evaluate the multiple areas of pain to see if they are related or if there are several causes.
5yrs ago my colon had been stapled & repaired as best they could. I have extreme back pain after all bowel movements. Could this be cause of my pain?
See physician. You should not be having pain. Further evaluation and testing is needed to determine what are the causes of this pain and to make sure you have not developed new problems.