late period but crazy new behaviors what gives

Y'all last night I went to bed at 10 and woke up at 2 am famish. I was so hungry I felt I was gonna barf. I ended up eating two packs of cheese and crackers 😂. Where is AF cause the test was negative 👎🏽 yet I'm up scarfing food down at 2am. That's not even my style! Lol 😝