Im confused

I was diagnosed with pcos today. But It’s so weird because I have been extremely active my entire life and never been overweight, just always having irregular periods. I’m just so confused because I see so much info about weight loss and eating healthy to help it when I’ve always done both of those things pretty well. I’m constantly on a great nutritional diet too. I feel like my options for treatment are limited because I don’t have any issues regarding weight or exercise. Can you advise or help me with what I’m going through? I’m so new to this and I am overwhelmed. 💛