Logical,
The answer will remain as 'no' until you ask the question. It might cost a bit to appeal (getting the specialist reports ect) and it may take a long time. You should keep the following in mind. I'm not a doctor, but head injuries and seizures and aviation don't really mix well. It isn't just the ADF that has a tough stance - so to do civil aviation regulatory bodies and militaries world-wide. Have a look at the DAME Clinical Practice Guidelines for head injuries and seizures on the CASA website. The ADF may have it's own additional and/or different policies, but this is the sort of thing you will come up against.