PCOS questions

How do I know if I have PCOS?

I'm 24 and have a resurgence of acne all around my jawline. Super annoying. I've gained weight, I have some hair growth on my chin (I know it's gross 😔). I don't remember if that's always been there but it's for sure worse since I've started plucking it.

How do I know? Any one have experience?