I can sympathise as I have a similar problem at the site of my anastomosis. Reversal took place in June 2011 and after a while I started to get a slight ache. At the 3 month follow-up appointment I must have mentioned it to the surgeon as he wrote to my GP "these may be the signs of early adhesive symptoms".
I found that wearing a wide, elasticated belt would help with the ache. Sometimes it completely disappeared for weeks but recently it is becoming more persistent. I mentioned it to my gastro consultant just before Christmas and he concluded it was purely mechanical ie. given the amount of surgery carried out there could well be some adhesions or scaring formed. He examined my abdomen and could feel a small amount of scar tissue. Nothing to worry about but he gave me the option of an MRI scan or capsule endoscopy if it would put my mind at rest.
It is certainly becoming more noticeable and seems to be worse after eating a large meal or physical exercise such as raking up leaves or driving a long distance. It is starting to feel like the stricture that was the reason for the original operation.
I'd be interested to hear what your doctor says on Friday.