so i was supposed to start my period on 1/29/17 it was 4 days late. when it eventually started it was really light, every time i put a tampon in it wouldn't fill all the way up, and when i would wipe it would be pinkish. normally on the first couple days of my period it's super heavy, this time it's like the opposite. also i've been getting hungry every 45 minutes and having to pee every 30 minutes i've also been having dizzy spells and headaches. someone tell me what's going on??!!!!