Mate dont be picky with medicine my brother got 4 A's and was turned down in all 4 choices, a girl from school who also got 4 A's was accpeted at one place.
Theres 2 things you should relaise aobut medicine, they like work experince, you have little chance of getting in unless you have loads of relivent work experince. They are apprntly not so interested in the odd day at a GP like my brother did, they want it to be a weekly comitment to show that you are commited to doing it on an on going basis.
The second thing is they love international students for their money, a guy a Know whos an international student got in to Bristol with B's.