(Original post by Niki_girl)
I know it's hard and really horrible anticipating results, especially when they're so important, but I genuinely think that you need to give it a month, actually receive your results, and then make a decision. It may be, that by some chance, you have managed to get an A in maths, and then all of this worrying will be in vain!
I'm not trying to patronize you, I too have an AAA offer for uni this year, and managed to freak out during the most important exam of my life. I know it sucks, when you've worked for months/ years (possibly) to get the offers and to get to this stage! At first I messed around with mark schemes and grade boundaries, trying to do mental calculations, but in truth this did me more harm than good - I can't change anything now!
Anyway, what were your AS UMS like? If you got 90% or more then you have reason to be optimistic, it means that you have "spare" UMS, e.g, you could have gotten 90% last year, and 70% this year, and come out with 80% overall = an A. Also consider, if relevant to your course, the weight of coursework, and how well you did in that!
Bad things happen to people in exams. Universities know this. If you are just a few marks off when your results come in, ask for a remark, if you have nothing to lose. Don't be so pessimistic! Your GCSEs would be considered very good at my school, and you haven't even sat the UKCAT, so you can't be sure that you'd do badly, it's all speculation
Lastly, don't worry about entry to Grad. medicine yet...put it into perspective, you haven't even seen your A2 results!
Good luck, I hope everything works out for you