You could try some ice packs for the swelling. The ice might help to numb the pain a bit as well. The PTSD/Anxiety is a beach! I struggle with it all the time even when I'm in the clear. The one thing that I have found that helps is exercise and staying busy. I know some can't exercise without worry of an attack while others will use it as an abort. Ever since I was able to get a break from a particularly looong attack by jumping on the treadmill, it's been something that I do when I have bad shadows. Sorry I've not got much to help on this one. I hope your head clears up soon!!!