Background/medical record check- Do BB banks look at medical records?

So I have been extended an internship offer for next summer with a BB bank and had a question about whether they would look at medical records as part of their pre-employment/background checks. So here's the situation, back a few months ago I had to go to the emergency room because I had a little too much to drink. I was underage as well. My question is, will banks be looking at medical info like that and if so could they even access it? After talking with my hospital, they said the only person who can look at my medical records is me but I just wanted to doublecheck and hear anyone else's thoughts on this. I'm just worried that for some odd reason a BB would ask for my medical record and see that I had to go to the ER because I drank too much onetime. If they could even see that, would that be enough for them to rescind an offer? More than likely I'm being too paranoid but would they ever look at medical records in a background check?