I am 3 months post op. The last 3 days I have been having a stinging sensation where my port is. There doesn't seem to be anything in particular that brings it on, it just happens, it only lasts a few minutes and I can "rub" it and it goes away. It is almost like a stitch is stuck or something. Has anyone else had this problem? should I be worried? Should I wait and see if it goes away on its own?