Has anyone here experienced this before? It's somewhere between sharp and dull and right in the center of my chest about 2 inches up from where the rib cage starts which would be the septum or breast bone I believe. I can feel it more when I press on the spot. Im not sure how it started but it started when I was still lifting, before I had to take a 4 week break to do a patio which wore me out each day so i didnt work out. Then another 3 weeks letting my chest heal. But during the time not lifting it has gotten worse. I worked out again today and only dips make it actually hurt. Every other movement either doesnt bother it or makes a slight ache. I also have it randomly hurt for no reason sometimes, not doing anything, which is odd to me. Any ideas?