So I've always had anxiety but I never realised that my over thinking  / analysising situations and feeling of  impending dread were anxiety. In the last week ive experienced a highly emotional situations  with my ex (finished maybe 4 months ago).  In the weeks prior to that I had an impending sense of doom like something wqs going to happen (I was right) 

Cut to today,  I'm in my car at the park  and I fully  become over come with qllnthese emotions,  that I'm stuck. I'm literally there and I can't fucking breath I'm my car and am thinking do I ring qn ambulance or what. I think it was an anxiety attack? 

How do i make sure this never happens again.