It is like bone and joint pain, just that it occurs in tissues around the chest. Pain is always a warning sign. When tissues don't get the nutrition and circulation the lungs and heart will also be affected, even if they are not detected now.
Suggestion:
1) change into a healthy lifestyle
2) follow the natural way of healing with Biodynamic Therapy,
You can try other ways, but the above will be waiting when you decide to return to the natural way