It probably is a wire then. I couldn't notice any of mine for about 4 months, then the top wire just suddenly seemed to be there. Now I can notice a few more, although not near as bothersome. When I seen cardiologist late July and asked about getting them out, she seemed to think I was better off with them but got me a meeting with surgeon about a week ago.
He says I'm at no disadvatage without them and can take them out in about twenty minutes. Except he mentions putting me out and having me in the hospital for one or two nights. Off work for a week. From what I've heard of others here having them removed it would have been more like having teeth pulled and being awake, with local freezing and no hospital stay.
A hospital stay won't be that bad I guess if it means avoiding being awake. He originally mentioned two nights stay, when I expressed a bit of shock at needing a stay he rethought and wondered whether I would or not. Then mentioned it would be one night for sure anyway.
So if its a wire your feeling. The sooner you ask about getting them removed, the sooner it will happen. I first noticed in March, but waited until scheduled cardio meeting at end of July to ask. It'll be almost late October or later before it happens. Another OHS person near here from about the same surgery date as me had a wire actually break I guess and is getting his removed soon as well. I'm not sure I've heard of them breaking before.