What do you think could be wrong with me?

ok for like a week i have been very gy like farting evey 10min and very sleepy and my moods have been all over the place, i pee like 15 times a day, i'm always hungry like even my bf said I've been eating more than normal. it's not my period that isn't due for another week and i don't get symptoms like that for my period. so what could it be?