Am 29 yr old lady,working as nurse.last week suddenly i had chest heavines and slight dizzy during my work.my bp was low that time 100/60 accompanied with sweating.dr order to,put o2 and make,ecg.ecg was normal.after that i became alright.after 2 days i experienced the same again.bt my chest heaviness is not going away.and also palpitation.i consult a dr.he prescribed betablocker.bt my condition is not improving and also its worsening.now the heaviness is in my throat also and its radiating to my jaw and teeth.sometimes its going to my back and my left side.when i am,using stairs and doing hard work,the heaviness is too much and also started breathing difficulty.my resp in 1min more than 40.my pulse is irregular.i make ecg again its normal.bt the t wave is inverted v1,v3.what is my condition dr?plz give me an answer.