There is a simple treatment for once you are starting to have a panic attack. Carry a paper lunch bag around with you, folded up in your pocket or tote bag. When a panic attack starts, and your breathing changes, open up the bag and breath into, and out of it for a short time. What many people don't know is that we actually need to breath both oxygen and carbon dioxide. The carbon dioxide helps to balance the breathing reflex, while the oxygen is needed to fuel the body. During an anxiety or panic attack, when your breathing changes, you blow the carbon dioxide/oxygen balance to hell, and don't get enough carbon dioxide to keep the process going normally. This only adds to the panic attack. Breathing into and out of the paper bag for a short time will restore the balance, and remove the breathing issue from whatever has caused the panic attack.
I realize it may sound silly to use a paper bag, but it's actually used by doctors sometimes, too. That's how I found out about it. And you only need to carry around a paper lunch bag, which is small when folded.
I do suggest checking with a doctor or therapist about ways to reduce the occurrence of panic attacks, and methods of calming yourself when you start to have one, but at least you can fix the breathing issues yourself. Also, the breathing problem causes some of the other problems, including the tingling in your limbs, and dizziness.
Hope I've been able to help! ![Very Happy :D](./images/smilies/icon_biggrin.gif)
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau