I have a question my son is sleeping way too much I fed him last around eight or 9 o'clock and now it's around 12 o'clock and still won't eat I'm worried he may be sick should I take him to the doctor

Barbara
My premature baby doesn't seem to want to eat I'm worried because last time I fed him is around eight or nine I breast-feed and Normally he eat every two hours I know it's around 12 o'clock they still hasn't eaten again should I be worried