I'm a 37 year old experiencing chest pains - a tightening in the middle of chest with intermittant sharp pains

I was admitted to the hospital and had every test imaginable - even ruled out GERD,costochondritis and pericarditis. Sometimes the pain is sharp behind my breastbone. 5 weeks on two different nsaids made no difference. Beta Blockers made no difference. I do have mild mitral valve prolapse. It's been almost... show more I was admitted to the hospital and had every test imaginable - even ruled out GERD,costochondritis and pericarditis. Sometimes the pain is sharp behind my breastbone. 5 weeks on two different nsaids made no difference. Beta Blockers made no difference. I do have mild mitral valve prolapse. It's been almost two months of pain. Any ideas?

Thanks.
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