Okay loves, I feel like this is so odd but maybe it’s normal?

I’ve noticed in the past few years as I’ve gotten older (I’m only 26 but feel 40 lol), my hair has started naturally being curlier? I had naturally like pin-straight hair since I was a kid and within the past few years it naturally just curls and has much more wave to it. I’m not completely upset by it but more just confused bc I didn’t think that was a thing! I used to go to bed with my shower wet hair and wake up and it’s basically perfectly straight and now if I do that I wake up to almost a full head of like beachy curls.

Anyone else experienced this kind of thing? It’s not scaring me or anything but I just was wondering if I’m the only one whose noticed his kind of thing with age.