weird period symptoms

Haley
I've been having some weird symptoms and was wondering if anyone had any ideas what's going on. Any help is highly appreciated!(:
Back story: I am 20 years old. I got my period when I was 10. I used to have very irregular periods and I was diagnosed with pcos when I was about 14. I was put on birth control to regulate my periods. I have never had bad periods, typically just light bleeding, headaches, and mild cramping. They last 4 days. I found out about 2 months ago that I am anemic. I take iron every day.
.....TMI warning!.....
Lately: The period before last was kind of weird. It started on the 4th day (the day it was supposed to end) and lasted aroun 8 days. The first couple days the blood was a lot thinner and more watery like than usual. For the rest of the period, it was brown and more like discharge than blood.
Last period it was 4 days but still brown and looking more like discharge than blood. I'm a week and a half away from my next period so I'm not currently on it. Ever since my last period I have had some weird symptoms that I've never had. I've had some pretty bad vaginal pain, worse cramping than what I have even with my period, period headaches (without the period), breast pain specifically the right breast around the nipple, and pelvic pain.
Does anyone know what might be going on?

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