Hi,
My sternum seems to be sticking out just a little bit more than it used to. Maybe only a few millimetres but enough for me to be able to feel it. It is quite high up, about two inches below the level of my collarbone, on the sternum. It has been like this since easter this year. It is considerably painful when doing certain exercises e.g. dips, sometimes sit ups. I used to have no problem doing these exercises. Also it makes a cracking sound quite often when I arch my back backwards a lot when I am stretching. Getting quite concerned because it has been a nuisance for about 6 months now. It is not naturally painful, but it is stopping me from doing a lot of things I used to be able to do, and also the slight bump has got me worried.
I am 23, 5' 11", about 12 stone in weight. I have never had a condition, always been relatively healthy and play sport.
Thankyou for any help.
Tim