Thank you to anyone who has left me a message, especially the anonymous person who gave advice on a Masters degree. I've asked for a post grad prospectus from my current university, and am in the process of booking appointments with the med school admissions tutors regarding my current application. I'm going to see if I can beg my way into medicine anyway, as I am just about to start some more work experience.
Speaking of which, I start a new job tomorrow in a hospital. It's not brain surgery or anything stunning, but it's paid, it's in the NHS and it keeps me from laying in bed all day. Added to which, it might just class itself as work experience, and let's face it - it won't do any harm!