In Saving Private Ryan does Captain Miller (Tom Hanks) is having [early Parkinson's][1]? Parkinson's disease usually starts with main hand hangers and then arm starting to shake - exactly like Millers...

I have looked for this on the net and there are claims that it is [PTSD (Post Traumatic Stress Disorder)][2], and not Parkinson's, but I couldn't find anything like shaky hands being caused by PTSD.

https://www.youtube.com/watch?v=appYi51LZi0

**Is Captain Miller having early Parkinson's disease?**


  [1]: https://en.wikipedia.org/wiki/Parkinson%27s_disease
  [2]: https://en.wikipedia.org/wiki/Posttraumatic_stress_disorder