Chest tightness. Very scary sometimes!

Hi sir Actually I am a very anxiety and tension  oriented person and I have a lot of fear too for small small events ...in 2021 chest tightness started  near that muscle and I have done all heart related tests like ecg echo and even tmt also .. no problem in heart and approximately I have taken around 20 ecgs and 2 echoes and 1 tmt till date ...and even now if I feel tension or fear my left side chest or near that chest muscle is tighter or heavier ...even if I masturbate then also it was tighter or heavier and if I get angry my heart is like pounded and my head will like racing car and I feel like heart will explode ...and I don't understand the problem and whom to consult ...please help me on this and it will be very scary sometimes Thanks Dileep