I've been having really weird cravings lately...?

I've been craving things that I would not normaly eat, like tomato soup, ravioli, othe saucy foods. And I've really been craving pickles!!! I woke up the other night and ate 5 dill spear pickles. Then in the morning I had 2 more. And now tonight I had 3. I'm kind of worried because I've been eating weird lately..just all of the sudden craving things and eating lots. I know I am definitely NOT pregnant. I'm 15 and never had . And I'm not on my period or anything...so why am I eating so werid like? What can I do to stop?