This video explains what someone may experience when having their first panic attack. It sneaks up on you with no warning and leaves you scared because you have never experienced this. Your first thoughts are there is something medically wrong, like a heart attack. Even when the doctor tells you there is nothing physically wrong you may still live in fear of it happening again, waiting for the next episode.
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Is this what you experienced? This may be the more likely way someone had their first panic attack. If you are having panic attacks or anxiety you can overcome it on your own if. Check out Panic Away to see if it is for you. This program has help many people successfully overcome panic and anxiety on their own!