Had Colon Sectioning Surgery, Bowel Obstruction. Now Pain In Back, Hip, Stomach. Related? Lower Abdomen Separated.

I had colon sectioning surgery last December and a week later went back to surgery for a small bowel obstruction. My stomach was dying ; as air had backed up into it. I had 3 surgeries to resolve my problem within a 2 week period. Now almost a year later I am having terrible lower back and hip and lower stomach pain. I think that it could be related, but am not sure. Would having to cut the stomach muscles and operate so many times cause my sciatic nerve to get irritated? I had a spinal for pain control. I hurt really bad sometimes. My lower abdomen has separated and I look like I have a backside in the front. Can I do something to make this look better and what can I do about the pain?