A small attack.

I had a small panic attack at my work yesterday. 

I was expecting something mildly unpleasant to happen, but I didn't know when. 

When it happened, I wasn't ready.

I suddenly couldn't catch my breath and started to shiver.

I tried to run away from nothing, in a small space, with nowhere to run at all.

I don't really remember. 

I blurted out something like "I can't" and started to cry.

Afterwards I felt embarrassed and disappointed in myself.

I have friends in my team who are empathetic, kind, patient and understanding.

But it is still a very awkward thing to have happen.

I was also very uncomfortably sweaty for the rest of the day.  

How to have an anxiety attack.

Well, there are a couple of different ways to have yourself an anxiety attack, here's one I'm quite good at, in three easy steps:

Now when I feel the beginning of an attack, I try my best to keep my breathing steady. 
I remind myself I'm not dying, and I focus on breathing. I think that's the key.