Hmm, suspect you might be a victim of Dr's handwriting and you were given a medical category of A4 (unfit aircrew).
I guess it depends on how you answer the question "have you ever had an aviation medical certificate denied suspended or revoked by any licensing authority."? on your initial Class 1 application. My advice would be to come clean and discuss it with an AME on the basis that the first money you should ever spend on commercial flight training is the medical fee.
It might not be a show stopper as there are some areas where the Class 1 standards are lower than military aircrew initial entry standards (eyesight)