I developed neurological tremors after changing to Diet Dr Pepper in 2003. There is no family history of them, I wonder if my DDP addiction might be a key? I stopped seeing a neurologist because I didn't feel like the were attentive and I was sick of being doped up on Primidone. I have been trying to cut down on my soda intake for other reasons, if I can kick the habit it would be nice to stop shaking too. Caffeine limitation alone should help some.