Abdominal pain

So I have bad health anxiety and I’m freaking out the last few days.

I got my period super early this month- I only had a 19/20 day cycle. I do have PCOS so for me, weird stuff happens all the time. The cramps are horrendous and they’ve been constant since I started bleeding. At this point I don’t even know if it’s a period because I’ve never had abdominal pain like this.

It’s like a dull aching all over my lower belly and it’s so annoying. I’m scared it’s uterine or stomach cancer or something like that. There are very small periods where it does subside (like when I’m sleeping), and I’m pooping and peeing normally.

I have had some stress lately, so maybe stress? What are your guys thoughts.