I too had this little buzzing Bee inside my left side of the Chest. This has been ever since I had my triple bypass operation. My local Doc keeps telling me it's more than likely a Muscle. I am glad there are so many with a noticing bee inside their left Chest. It does not seem to course any problems, just concern for people who never had this before. I guess it is nothing to be concerned off since so many seem to have it and it courses them no dramas.
If I find out more I certainly will share it with you. I am off to have a Nuclear Heart Stress test done in a week just to make sure it's nothing. My breathing and all else seems fine.
:-)
This discussion is related to
Vibration on the left side of chest.