Is it normal to tense up so hard my head nearly vibrates?
In the past several years I've developed this "tic" I guess, I don't know why it suddenly came on.
When I'm told to hold still for a photo, or people are all looking at me for a reaction my head and neck tense up so much that I can hardly keep it still. It feels almost like my head is trying to vibrate and I'm trying to reign it in. I can't tell if people notice something strange or not when it's happening.