Whenever I feel like I'm in a pressure situation or making eye-contact with someone, i sometimes will get a little quick "no-no" head shake. I had a bad panic attack about a year ago, and if i get black out drunk i will definitely feel more of that head shake the next couple days. Also, i had a bad panic attack when i started drinking one cup of coffee for about 2 straight weeks. I've been off caffeine now for about 3 months, i feel like its gradually getting better. any thoughts or suggestions? I've always been a very social person and im not scared of social situatoins, just that little head shake can be annoying at times and want it to go away. It'll get worse if I'm in a very pressure situation like talking to a proffesor, etc. Any thoughts?