Left side chest pain from 50 days.

Actually doctor it's has been 1 month actually I got a chest pain on 3rd of September with shortness of breath and dizziness and pain was radiating to left hand and than next day I went to doctor to show . He did ecg and blood test . He said ecg and blood test both are normal . But in ecg I noticed it was sinus trachcardia I thought it's because of nervousness my heart beat increased as doctor said everything is normal with me . Than from month I am having chest pain . That doctor gave me peace tablets antidepressant.  Till Today I am having chest pain sometimes radiates to left arm  and m also having dizziness numb hands  .  And also pain is unstable. It almost happens middle of chest . And sir can it be because of vaccine as I took 2nd dose of vaccine on 24th august and on 3rd September after 10 days I got this symptoms so can it be due to vaccine? As I have heard many after 2nd dose are getting myocarditis. Please help me out doctor. And after on 3rd of October I did 2nd ecg normal