How to stop my chest/heart pain, it is so bad?

I have had pain in my heart for 5 years, radiating strongly to my left chest and back. However, I have seen 8 cardiologists, and they say there is no issue. Which other department should I visit? Especially after two doses of the COVID BioNTech vaccine, the pain has increased and has not subsided.

How to stop my chest/heart pain, it is so bad?
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