Long periods, how long is too long?

Brittany Dee

Background. I’m 22 and have PCOS. I went a couple years without getting a period at all (18-20). Then I started getting it every couple months usually every 3-4. Then all of a sudden i got it September and October. The problem is I got it October 23rd and it lasted until November 14th. And now, November 18th, it’s back! What the bloody hell is happening?! Any advice??