Is there a way to know if i am having a panic attack?

DESCRIPTION: Heart rate and breathing become rapid, anxiety intense, possibly sweating, tingling in fingers and around mouth and other symptoms often accompanied by fear of dying. One is moved to avoid places, behaviors, etc. This is an intense experience.

Panic attacks can : Develop rapidly ; include: marked anxiety; rapid, pounding heart beat; chest tightness or pain; shortness of breath with hyperventilation; hot or cold flashes; a sense of butterflies in the stomach, nausea or even vomiting; tingling of mouth or extremities; increased sweating; feeling faint or lightheaded; headache or shaking. There may be difficulty swallowing or tight throat;.