I've noticed this too, to the extent that I think very often they go hand in hand.

I've never asked my pdoc, but I'm sure I'd qualify for GAD. I take 1mg of klonopin every morning and get an extra 10 every month to take PRN (I always have some left at the end of the month; I try and take them very judiciously, but there are times when I'm so anxious that I'm just paralyzed and can't get up to do anything).

I also take propranolol PRN. Per pdoc, this helps with the physical manifestations of anxiety, and it has. I get really anxious at work, especially during the first couple of hours before I really settle in and I used to shake. I take propranolol in the morning on workdays and it's helped with this enormously. I forgot to take it once, and had a piece of paper in my hand and realized it was shaking. Then I went to see a patient and realized that my legs were shaking.

Both Klonopin and Propranolol play their different roles and both are very helpful to me. Anxiety truly can totally disable me, so I'm all for throwing whatever is necessary at it.

I know I should try alternative methods to help with it (i.e. meditation, which I tried for a while, but have since let it fall by the wayside...).