weird! help!

so my period has been very weird. oddly light, no spots on my face, no mood swings. i’ve been very happy and had no cramps whatsoever. i’m sure i’m on my period as it’s due and there has been some blood. my period is usually the opposite of this. very heavy, very painful and i breakout a lot. this time round i have also been very hungry which i never usually am. can someone give me a reason for this? much appreciated ❤️