why.. why.. why..

why this few day i cannot sleep well??? omost everyday sleep at 5am and wake up around 8-9am.. juz only a 3-4 hrs sleeping hrs... wat happen 2 me... am i too stress?? o am i too miss home?? o m i too many problems to think of??? i rely no idea... i think everything is ok.. but why i stil cano sleep well... haiz.. hope tat start from 2day i can sleep well.. bcoz is bad 4 health oso...