I feel sometimes increase of appetite and feel a sever hunger to eat what ever want is this sighn of growth spurt i am 17 years old boy ???

Growth: I am sure you were seen by a pediatrician from birth and as you are growing up. I am also certain that your doctors have been plotting your height and weight growth curves. Once you have that data in your (and your parents') hands you can begin to see if your are growing OK or not. If not further studies may be needed but hopefully you have been growing at the correct pace.