The VA? No. They only rate you on the evidence they were given in your file. If your symptoms changed significantly enough your case should/should have been recalled. You also have several options when your final results come back (i.e. VARR, appeal, etc.).
2.8. Recall of a Case from the PEB. The referring MTF commander may request to recall a case if a major change in the member’s condition occurred or a new condition is discovered. AFPC/DPFD determines whether recall is appropriate. If the service member‘s hospitalization or treatment progress appears to have not medically stabilized and the course of further recovery is not relatively predictable, or the condition is not considered to be potentially unfitting, case processing continues and the condition may be addressed by the VA upon the service member’s discharge from military service.
AFI 36-3212