Are you disagree with the Board's decision?
Yes, I'm disagree
In that case, you can appeal to the U.S. Court of Appeals for Veterans Claims. You can hire any attorney to represent you or you can represent by yourself.
And what's the next step?
Don't do anything while you wait unless VA sends you a letter asking for more info.
When can I file a Court Appeal?
You have 120 days from the date on your decision to do it.
Does VA schedules exams?
Yes and be sure not to miss them.
What if I have more doubts?