I am a 40 year old female. I have had chest pain , sternum area, for a few months now, worse in the morning. Today, and last night, have been the worst by far. The only way I can describe is feels like my bone hurts right in the middle of my chest, actually relieves some when I apply pressure. I am low weight, 118 5 2 and nothing there but skin and bone. Could I have an infection of some sort?