Hello SHRONB.
Thank you for your post although I'm sorry to hear that you are in pain. It is always useful to have these things checked out by a competent physician, if only to give you peace of mind. However, as you are inviting comments from the rest of us I will put my twopenniworth in.
It is highly likely that you might be getting pain because of the healing process and that may or may not be 'normal'. Sometimes the scar tissue overdoes the its healing to the point where it can cause problems. Other times, the sort of pain you describe, can be the result of something else causing pressure in that region.
I wanted to ask you if your pain was constant or intermitent? Mild or severe? (on a 1-10 score) Focussed in one spot or spread over a wider area? Does it dissipate when massaged or when you pass wind and faeces? You might see where I'm going with these questions, as anything making the bowel expand (like wind and faeces) is likely to cause pain if there is scar tissue in that area and this would be classed as 'normal'. Coughing is like any other straining which will put pressure on muscles that don't normally get that sort of use and if it's scar tissue down there, then pain is likely to be the result.
I hope you find a reason for it soon, as that can ease the worry. However, I ALSO HOPE THAT YOU FIND A SOLUTION as that will help much more.
Best wishes
Bill