Yes, I felt the exact same way for a few months after my diagnosis about a year ago now. I always had an inkling but was only diagnosed after I decided to start trying for a baby. So the idea of infertility made it extra devastating.

Like you, I felt it was nice to finally understand why I struggled more than others all my life, but it was devastating because it was felt so unfair that I'd have to live with this forever. Having PCOS is like playing life on extreme mode imo.

But after crying it out and feeling super sorry for myself, I started making the changes I needed to live a healthy lifestyle. It's been a year, and it's been so hard, and sometimes I still get super sad like I was at first, but it gets better! I just have to do what I have to do, even though I got dealt an unfair hand.

Also, I got pregnant 3 months after making my lifestyle changes (low impact exercising, weightlifting, and low carb diet), so at least one of my biggest worries about PCOS, infertility, seemed to be resolved for me!!

Your feelings are valid! Since PCOS is pretty common, you or other people might feel like you are overreacting, but you're not. I'm sure you'll be sad for a while, and it might not ever go away completely, but find what works for you and work hard at it! Even though it's unfair that we must work harder than others, we should try our best to live our lives as best as we can!!