Hey I am interested in joining the royal navy and have been for a while, its just now however that I'm thinking about applying. The only thing i'm worried about is I have had to go to the hospital in the past due to cocaine use (I thought I was having a heart attack). It was only the one time and it turned out I was just having a really bad panic attack due to the cocaine. I don't do it anymore and haven't for about 6 months now. My questions is would this disqualify me from being able to join as I'm sure it will come up on my medical history. Thanks for any help given.