Is this normal or is something wrong?

All this week I've had insane cravings for fried eggs. I don't want anything else but fried eggs. I tried to eat a hamburger and I ended up throwing it away..the only thing I can stomach is fried eggs. No I'm definitely not pregnant and I haven't been sick or anything. Just eating fried eggs is not healthy. What could be wrong with me? Should I see the doctor? Or is this normal? If it helps I'm 17