Quite often my hands shake. It's not a extreme shake, the muscles just tremble. The trembling sensation travels up my arm, just below the elbow. It's not due to liqueur, and I don't drink more than 2-3 cans of soda a day. I don't drink coffee or other caffeinated drinks. The shaking has occurred after eating, so I know it's not low blood sugar. I've been tested for diabetes and it was negative. Other symptoms that I have that may or may not be related are: dry eyes, fatigue and easily bruised. I'm also young; just 19 so it's probably not any type of arthritis.