Ohh when i saw ur straight A*s i thought you were a nerd....like 95+ in all these subjects....didnt u prepare for mocks? Mocks are generally from past papers....and o level paper is unseen..u got Bs/Cs in mocks and A*s in o levels..haha!
Hey man....in ur o level CIE papers...did you make any mistakes/blunders in Physics, Chemistry and Maths? Or was there any question(s) which you were unable to solve properly?
One more thing...how much did you used to score in mocks and in school generally for these 3 subjects?