[€uroMeinke]

Ditto on the breathing - but I might further suggest taking a few really deep breaths, by which I mean start by trying to expell as much air out of your lungs as possible and the then holding for a three-count, then take that deep breath and hold it for a three count as well. A couple of these can really ground you.

I'd also add you might want to try some relaxation/meditation exercises. An easy one I do is focusing on different muscle groups in your body, tensing the muscles (with an inhale) and then relaxing them (on the exhale). Ideally, you'd have a dark room, and a clean floor to lie down on. Start at your toes and work your way slowly up your body to your forhead. It's important to visualize each part of your body (some guided meditation might also work) as this keeps your mind focused on something else, and not on what it is that stresses you.

As you work through your body you may be surprised at the places you hold your stress. In the future, you can sit in your desk and think of those areas as you do a couple deep breaths. I don't know about anxiety attacks but this really helps to keep me grounded as work stress hits me during the day.