As to your med question, given what you say, if you want to try a med you might want to look into beta blockers -- they're specific for heart palps and are used for social anxiety
and certain specific phobias
sometimes, and are said to be easier to quit than benzos, which are addictive, and antidepressants, which may as well be considered addictive. If the gentler stuff doesn't work, the meds will still be there for later -- they aren't going anywhere. Good luck to you.