I noticed a few weeks ago that the bone around my sternum sticks out more than the rest of my ribs. Seems as though its the manubrium just below where my collarbones meet. Theres no pain, but it is causing a good bit of anxiety and shortness of breathe. However I am not sure if the shortness of breath is from anxiety or if theres something wrong with me. I also should note I have cut back on sugar alot and have lost some weight, so maybe the bone has always been like that but losing weight revealed it.