Is it normal to crave meat?

hi i'm 14 years old and i don't eat meat or seafood. i gave up meat about 4 months ago because of my beliefs and because i'm a Buddhist, but recently i've been craving chicken a lot. before i became a vegetarian, i would hardly eat meat that much. i hated it all through my childhood, the taste, and the fact that it used to be alive and moving has always repulsed me. but now every few days i get all anxious and have savage-like urges to eat the chicken my family eats, even though i can hardly look at it without grimacing! i'm so confused! is this normal? how can i stop these urges? it's so bizarre because i'm disgusted by it but at the same time i want to eat it again. has this happened to any of you?