What's wrong with me? I have strange dietary cravings.?

Hi, I just want to know if I have a strange medical condition requiring treatment. I am a 34 Y/O asian woman who hasn't had any chronic conditions or ailments. I am by all appearances quite healthy and athletic,( I'm a goalie playing ice hockey). But I have the strangest dietary cravings. I will sit down and eat a whole 50oz jar of pickles and then drink the juice, and I'm not pregnant. I know this sounds really gross but once I start eating pickles I can't stop until I have devoured the whole thing juice and all. I've never heard of a non pregnant person do this before. Am I defective?