Help me plz!!!! whats going on?!

Question
ON THE FIRST DAY OF BUYING MY HAMSTER (FRIDAY 8TH DECEMBER 2006), HE WAS VERY
CURIOUS AND FRIENDLY. hE WOULD FOLLOW ME IN HIS CAGE AND SEEMED VERY SOCIABLE.
hE WOULD CLIMB UP THE CAGE WHEN WE WENT NEAR HIM, I THINK HE WAS TRYING TO MAKE
FRIENDS. THAT NIGHT, HE SPENT THE WHOLE NIGHT ON HIS EXERCISE WHEEL! ANYWAY,
OVER THE PAST FEW DAYS HE HAS BECOME LESS SOCIABLE, ONLY COMING OUT OF HIS BED (
WHICH HE HAS BEEN BUSY MAKING OVER THE PAST FEW DAYS) FOR A FEW MINUTES. HE HAS
NOT BEEN ON HIS EXERCISE WHEEL ANYMORE. THE LAST TIME HE WENT ON IT WAS ON THE
9TH OF DECEMBER, THE FOLLOWING DAY THAT WE GOT HIM, BUT EVEN THEN HE WAS ONLY ON
IT FOR ABOUT 10 MINUTES. I GAVE HIM 5 RAISONS THAT DAY,BUT HE ONLY ATE 2 AND
STORED THE REST, I HOPE THAT DID NOT AFFECT HIM. HE HAS NOT BEEN ON HIS EXERCISE
WHEEL SINCE. I HAVE NOT BEEN ABLE TO HAVE A CLOSE LOOK AT HIS DROPPINGS, BUT
FROM AFAR I DONT THINK THAT THEY ARE RUNNY, ALTHOUGH HE HAS STARTED TO SMELL A
BIT BUT I DONT KNOW IF THAT IS NORMAL OR NOT. LAST NIGHT (10TH DECEMBER)HE DID
NOT GET UP UNTIL SOMETIME AFTER 1AM. I AM STARTING TO GET REALLY WORRIED.
YESTERDAY I PUT IN 5 CHOCOLATE TITBITS IN HIS CAGE, WHICH IS THE RECOMMENDED
AMOUNT, BUT HE ONLY TOOK 1, HE DID NOT EVEN STORE THE OTHERS, HE JUST LEFT THEM
WHERE I PUT THEM.YESTERDAY I ALSO PUT A TINY PIECE OF BREAD WITH A THIN LAYER OF
PEANUT BUTTER, BUT HE HAS NOT EVEN TOUCHED THAT. ANOTHER THING IS THAT WE HAVE
BOUGHT HIM ANOTHER HOME BECAUSE THE PREVIOUS ONE WAS TOO SMALL, BUT THE NEW ONE
SEEMS PRETTY BIG BUT HE HAS NOT EVEN BEEN IN THERE YET. WE BOUGHT THAT ON THE
10TH DECEMBER(YESTERDAY). WE HAVE NOT HANDLED OR EVEN TOUCHED HIM YET. HE HAS
TAKEN FOOD FROM THE TIP OF MY FINGER WHICH I PUT THROUGH THE BARS OF THE CAGE.
PLEASE CAN YOU GIVE ME ADVICE ON WHAT TO DO AS I AM VERY WORRIED THAT THERE MAY
BE SOMETHING WRONG.
THANK YOU
    FRANKI.

Answer
hamsters are normally night time creatures so him waking up at 1am can be normal. my hamstep did the same thing when i got him. he played on the wheel for a day or so then slept all day and he wouldn't let me play with him. he was establishing his territory. have you cleaned out the cage since you got him. the smell could be from the cage if you haven't cleaned it. don't feed your hamster peanut butter, it could get stuck in his cheek pouches and chocolate isn't good for them either, so avoid those two foods. also, when you clean his cage, check his bottom to make sure there is no diarrhea. more than likely if your hamster looks fine he is just settling into his own routine. if his breathing looks normal and he is waling normally and eating and drinking he is probably healthy,  but if he's not eating or drinking a vet check is in order