Congratulations mate, start studying now for your chosen roles. Don't forget to do a bit of research into the other services as well to round out your knowledge for OSB and Assessment Day
Not producing paperwork will make you a 2E or 2D or something similar (temporarily unfit pending waiver or paperwork), but sometimes if you can't explain something as serious as chest pains then they will shoot you down before you even get a chance!
There's a separate medical sheet they fill out for aircrew applicants during your Assessment Day re fitness for FSP, so it is independent of your "DFR Classification". There's a big box that says "FIT FOR FSP" down the bottom you need to get a tick in!
I missed my first eligible intake because I didn't have paperwork prepared which is why I strongly advocate everyone to cover themselves.
Best,
fs