Curcumin has helped with my anxiety. I was having really bad attacks the first month or two after my concussion, but I haven't had one lately. I also shake and vomit from anxiety attacks (which might be a little different than panic attacks? I'm not sure), but I haven't done that in a few months.

When I do get to the point where I am shaking, I have found that taking a hot bath with chamomile bodywash helps. I have no clue why. My doctor told me that limiting carbs and sugar would help prevent attacks, although I don't recall why. I do feel really anxious when I eat any junk food, so it could be true.

If your head shakes, I recommend laying down in bed with a pillow behind your head when at attack starts. Turn off all the lights and do your best to relax. Maybe having a plush pillow beneath your head will help minimize the impact of some of the shaking? I am not a doctor, though, so I couldn't really tell you. Just throwing out ideas.