first of all dont worry and take everthing in your stride.
firstly i suggest you should get an ekg done to rule out any underlying pathology,
if the ekg comes sinus tachycardia
then its more of an anxiety
attack you have because of the underlying fear.and rather than starting with antianxiety drugs i would suggest you to rather first reassure yourself,meet a counsellor if required,find alternative ways to earn..and even then if your panic attacks are not coming in control you can start with medicnes meeting a doctor
all the best