I could be wrong, but I think we all have entered a daily, or at least weekly, battle with anxiety--even those of us who have been blessed with an anxiety-free constitution. It's the nature of the times, I'm afraid. But perhaps that's the lesson of this incarnation--steadiness and an ability to keep one's heart up, full, and beating.
The heart, of course, is at the mercy of the mind, unless we create habits otherwise. On that note, I found a wonderful meditation for anxiety--so simple in its brilliance that, like the best magic tricks, it seems obvious in the reveal. This is it: you don't have to accept every thought that enters your mind. You see, the brain is canny and clever (or a pain in the ass, depending on perspective)--it assumes every thought you have is truth, reality. And because of that 'reality,' our bodies respond in real time--the heart races, the breath dwindles, adrenaline floods, and what was clear sight becomes nothing more than a pinpoint in scope.
But here's the thing--you can drop that thought. You don't even have to complete it, which appeals to the rebel in me. As soon as it floats to center, cut its strings and let it drop. Do this every time and eventually the brain will stop sending up those flares. Is it a pain in the ass? Sure, but so is training a puppy. Is it worth it? Oh, hells yes--both for you and for the people around you, at the mercy of your unleashed brain (or puppy...).
Scatter those thoughts. You'll be amazed at how many of them wither, unsuited for this climate, on the vine.