If you decide to disclose it be armed with anything you can to prevent delays. Specialist reports, physio reports, doc reports, notes from personal trainers/coaches you name it. You could always play down the seriousness of it to the doc at DFR
All I wanna do is go flying!!! It's been too long. I've got no God damn money! Donations welcome, I take all major credit cards, BPAY, bank deposit, cash and cheque...or your plane