After 6 years of hell living with head trembling, sweaty hands, and excessive blushing caused by social anxiety, I'm at least glad that I've found this forum and some personal remedies. Hopefully, if I share my story, others can benefit as much as i benefit from hearing theirs.
The first instance of a head tremor came about 6 years ago at the age of 26 in my final year of grad school. Since that first incident, my life hasn't been the same. I tried to understand the triggers, but that didn't help. High stress with school work and practicums, over-caffeinated, new and more responsibility, girlfriend problems, etc. The cause doesn't seem to matter. What matters is that it happened and I've been in this vicious circle of fearing the fear itself ever since. I lost my job, my gf, a lot of friends cause i stopped going out, abused alcohol to treat the symptoms, hid in my apartment. I really thought I was going nuts. One day I remember staring into the mirror wondering how the hell i'm going to get through this. I had so many dreams and aspirations, and didn't see how any of it was possible when I was too scared to leave my apartment. Just thinking about that moment chokes me up.
I tried CBT therapy, ativan, cipralex, respiridone. These were only effective at very high doses, but I couldn't function as a walking zombie! Recently started propranolol after I read that it helps with performance anxiety. It's way too early to say, but the few tests I've performed (eg. making prolonged eye contact, standing in busy lines, taking a sip of my drink in front of people) have been achieved with good success.
One thing that I have noticed, and it's been mentioned here a couple of times, is that fighting the symptoms makes things worse. It's like the Chinese finger trap. The more you fight it the worse it gets. So I tried the opposite of fighting it. When I start to feel tight in the neck, face turning red, hands sweating, heart racing, choking, (all the symptoms leading up to head shaking), I invite the feelings with open arms! I say "have a panic attack of epic proportions!" Shake like an earthquake! Sometimes I command myself to take the shakes to the next level! Sure enough, I can't do it. I can't force the shaking. It sounds nuts, but it's worked for me.
The other thing that's worked for me is not beating myself up over it. I used to chastise myself for having these feelings and for feeling like a weirdo. That's again, the chinese finger trap. Accept that you will have to deal with this for the rest of your life, and that it's ok because you WILL find a way to manage it with your own special formula.
This whole experience has changed my life. I had to re-script my life to prevent a downward spiral. It's something I will always deal with, and that's ok.
I know exactly what you're all going through. Good luck to you all.