I'm late! I am crabby ! Help

I was suppouse to get my period today! I haven't. I don't have cramps back pain or any period symptoms. But I'm moody I am crying crabby tired lazy and just wanna be to my self. I been craving spicy things and I don't ever eat spicy stuff! I tried to lay on my stomach and it hurts I can't I can't breath. And I feel weird. !