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- Chest Problems
I'm having some muscle pain when I stretch, especially along my chest rib and it even feels like it's coming from the back. I got an ECG and echo done, and they came back normal, but I still feel this discomfort on the upper left side of my chest. I'm getting a bit scared, especially when I sometimes have shortness of breath. Could this be costochondritis or something to do with my lungs or heart?