Idk what this is and I’m scared

Ashlee

So I’ve been having this for 10 days now and I have pcos ... I haven’t had a period since August/September not for sure. But when I do have periods they last like 4-5 days . This time it started out as spotting and had been very light ever since. I feel like I’m wasting pads. Should

I go to the ER or what ?? I’ve never spotted or bled this long ...?