Cravings!!

First off saying im not pregnant i dont think and my period is suppose to start tomorrow. My at work on night shifts right now and wont get home till 7am. But all of a sudden i have the biggest craving for deviled eggs. My mouth is watering and i just cant get it off my mind i need deviled eggs now. I read somewhere that it could mean your body is lacking vitamin B12. But i just cant wait to get home and eat some my amazing fiance is going to boil the eggs for me so i can whip them up and chow down. Anyone else ever craved this super bad?