oi eat la....go doc, buy pills then dun eat...haiyoz...for me i
eat alot of medicine from young so used to it 
yep u too stressed liao. typically a brain will reenact everything
in ur life when ur awake. as for solving the unsolvable, well it
may b bcoz while ur aslp, ur brain taps into ur subconcious mind,
the library of memories. ur subconcious mind occupies the largest
parts of ur brain n it remembers many nitty gritty details of
things uve seen, heard, felt...things which u din even knw that u
remembered. probably when ur brain is regurgitating, it tries to
solve the previously unsolved qn therefore u had more resources to
use to solve the qn when ur aslp. however it aint reali healthy la
i wuld say...slping is for rest 