Is this a normal reaction when running?

Patient

Q: I just got back from running a little over a half a mile. I normally walk 4 miles a day and I'm definitely NOT a very fit person. I've never really run and when I did actually jog, I never questioned reactions. My face burns, it feels like a multitude of ant bites all over my face; my chest tightens to the point I feel like my hearts about to explode; I start seeing what looks like gnats flying around me but they also look kind of like stars; I get to the point I can't breathe; my skin, usually my arms and face, flushes red; my head starts aching really bad; and I get really dizzy. Is this normal or could this be something else?

Doctor

A:   This question is currently in queue and will be answered shortly by one of our doctors. In the meantime you may browse our library of answered questions by clicking here.

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