I'm a Vietnam veteran. I developed a tremor in my hands while I was in Vietnam. As others have noted on this page and elsewhere, it's embarrassing to eat in public, since I have a hard time getting food to my mouth without broadcasting it around the table. Writing legibly is not possible for me -- fortunately, I do most of my work on a computer.
I've never sought a disability from the VA, but have been considering it lately. However, based on what I'm reading here, it seems unlikely that my tremor would be recognized as having originated from my military service. Since most of these posts are three yrs old, I'm wondering if any research has emerged in the interim that would link tremors in the hands to PTSD or Agent Orange.