Good luck, i have just got back from Pirbright today, I was medically deffered because theres a little bit of a squishy noise coming from my lungs (basically a cold) So i am deffered until its gone *even though i got basically 20-20 vision and finished the medical with flying colors* ill be back in January after the cold is gone (no time for it to get better before christmas leave).
The staff will be cheeky bastards and you will be bricking yourself *if your like me* but just make some friends and crack on and youll be done in no time
Good Luck mate. I passed mine last week and was deferred with a heart murmur your be fine. On your run if you hurt head up and keep going. Your feel like the Corporals and Sargents seem to be a little off with you at first by the second day you will understand why they were doing it. And the biggest tip is if you don't understand ask don't look like a fool doing the wrong thing.
Im not sure but a friend of mine has a heart murmur and was stamped unsuitable for service. If it was a suspected heart murmur and was checked and cleared youll be fine, although if you have something like a hole in your heart - you may have a tough time convinceing the medical wing your up for the 3 1/2 months torture...