I had spine surgery a week ago, now i'm noticing my stomach getting really swollen. i'm not constipated because i've had several bm. i'm confused plea?

What kind of surgery: Without knowing what type of spine surgery you had, it is really hard to help you. The most common reason for your problem is constipation from narcotic use after spine surgery. However, if you are moving your bowels, this is not likely. If you had an anterior lumbar interbody fusion, then you may be developing something that needs to be looked at by your approach vascular surgeon.