If you have requested a decision review, you don't need to do anything until you receive a letter from the VA asking you for any information that they might need.
Please be aware that the VA might schedule more exams for you.
They haven't asked me to have any more exams yet.
Unfortunately, no relevant information is found.
When will I find out the results of my request?
Once the VA processes your request, a reviewer will call you within 2-4 weeks.
Maybe an unrelated question now. Could you elaborate on what is higher-level review?
A Higher-Level Review looks at the same evidence and determines whether the decision can be changed.  We can help you learn how to request a Higher-Level Review.
what if I want to appeal to a veterans judge?
Then a judge at the Board of Veterans Appeals in Washington, DC would review your case.  We can help you request a Board Appeal.
what can I do if I disagree with the Board's decision?
Would you have new and relevant evidence that supports your case?
yes, I think I will have a few things