Feeling breathless/tight chest for 3 days after panic attack

Hi everyone, 

I had my first panic attack in a few months on Tuesday. I handled it better than I have handled attacks in the past, but I am still feeling a lot of residual anxiety and a particular symptom is scaring me. I have had a tight chest and throat/difficulty breathing feeling ever since Tuesday. It comes and goes with varying degrees of severity. I keep wanting to up and run to the ER but I have kept from it so far. Is this "just" my anxiety causing these symptoms? Surely if something was wrong with me it would have happened by now, right? 

From my own experience , is definitely anxiety as I have the same symtoms too. Did you see any psychiatrist or on any meds ?