On verge of panic attack

[scareeed]

Yesterday suddenly felt huge amount of anxiety like on verge of panic attack and im still on verge of it. It heapened out of nowhere and i cant identify the thought that caused it. Has anyone similar experiance and how can i identify the thought that caused it?

[PWO_Nathan]

There may be no cause or trigger to it.

My anxiety has been fine for last few months, then all of a sudden on Tuesday night I felt my heart skip a beat. This immediately sent me off into an attack.

It could be any number of things or simply a blip, try not to overthink things and remember that attacks cannot harm you.