i got a*aa in biology maths and chemistry respectively, thought I should have got 3 a* which i probably would have had I not left it so late.
I put off revising right up until, if i remember correctly, about 16 days before my exams, when I revised hardcore - mainly past papers. I had 5 exams.
I would say I have always been considered intelligent (not that I think intelligence is solely reflected by grades).