M.C.
Yes, my son too! My 2-1/2 year old son had a big growth spurt this past winter. In fact, since Fall, he's put on 6 lbs. and grown 1-1/2 inches. He still takes a nap during the day--usually 3-4 hours long and his appetite has increased. He's a little chubby in the tummy, but that's typical with most kids this age (some people call it baby fat). My son doesn't get up during the night, but when he gets up in the morning, boy, is he hungry!
I've heard (maybe it's an old wives tale) that it's common for kids to grow more during the winter than in the warmer months too. I don't know if that's true in most cases, but with both my kids, they grew more in the winter.