Costochondritis

New to this forum. Short question would be- does anyone with costo. have mild tingling in left arm?

It's the main symptom that gives me panic attacks thinking it's my heart :(

I've had CFS for 20 years and chest pain for 6 months+ although used to have it mildly with colds. Have had heaps of test to discount heart- ECG, triponin blood test (I think that's what it's called), stress test...

I'm pretty sure it resulted from coaching/demonstrating discus for the first time in YEARS- without warming up (clever!). I also have an old left shoulder injury from diving in touch football and am wondering if this is contributing.

I am so over it and just wish I could have some kind of proof of injury to help me stop panicking about my heart :(

Thanks for letting me share.