Sos!!!!!!!!!!

So I missed my period last month and it came 13 days late. I know I’m not pregnant but my menstrual cycle changed from the rnd of the month to now the beginning. I’m on day 3 and I feel nauseous and my cramps are sharper than normal. Today my stomach actually hurts (I did eat fast food) and my jaws are watering like I’m going to vomit.

Is this normal for a period? The only time I’ve ever gotten nauseous on my period was when I first started when I was younger.

**** and yes its my period, I have cramps and normal blood flow down there ****