I have a small, unexplainable bruise on my spine, right wear my bra would be, I have had it for 2 months and pain only on one spine bone (were the bruising is). The pain has recently gotten worse.  It hurts just to sit back in a chair or in the car.  I have had absolutly no injury or trauma.
Hello! Welcome and thank you for asking on Chat Doctor! Regarding your concern, I would explain that your symptoms could be related to a chronic infection. A tumor can not be excluded either. Coming to this point, I would recommend consulting with your attending doctor for a careful physical check up and some tests