What the heck is going on...???

Okay so heres the thing...im hungry...ALLL THEEE FREAKING TIME.....i eat a full course meal wait an hour then BOOM hunger pains like it is so crazy i literally get the feeling like i havent eaten all day. I have horrible acne, (ive never had an issue with acne) and omg all i want to do is sleep...and what are these head aches...like i know i cant be pregnant. But what is it?? Has anyone else struggled with this???