Yes, I had a hiatal hernia repair. I also thought it was from that and then I started worrying if I had something wrong with my lung because it would hurt when I breathed in. But it is not all of the time.
Thanks for all of the info. I will have my doctor check it further. He did say there may be some scar tissue causing that feeling. I guess I will have to make him check further. I sure hope it doesn't get worse. It is not a pleasant feeling.