Welcome, @raisanicole. I see you want to connect with others dealing with costochondritis and lung and heart issues. For this reason, I moved your message to this existing discussion so you can connect with others like @jmb73 @al4terry @khanm @dawn_giacabazi and more.

See here:
- Costochondritis and lung problems https://connect.mayoclinic.org/discussion/costochronditis/

You may also be interested in this related discussion in the Chronic Pain support group:
- Costochondritis: https://connect.mayoclinic.org/discussion/costochondritis-1/

What symptoms are you experiencing? Have you consulted with your doctor to confirm the diagnosis?