VA Disability Appeals

[1IDVET]

Has anyone gone through the VA disability appeals process?
I need to know what my options are. I am really getting screwed by these guys.
I am sure that I am not alone here.

I just got the letter in the mail stating that all I am getting is 20%.
For all the problems and pain I have, it doesn't compute. Especially since I know other vets that have fewer ailments and are getting 60%, or better.
On some issues, they granted a disability of 0% and others just outright denied.

3 of the issues they denied were directly related to the Gulf War.

Any recommendations?
Experiences?