Moon face and chubby cheeks. What can I do?

I've developed "moon face" over the past seven years, and I'm not sure why. I'm not on steroids, and I haven't had any filler treatment for some years. I'm attaching a picture from 8 years ago. I know that's a long time, but the change has been gradual but very noticeable. What can I do? What could be causing it? Desperately seeking answers, without getting anywhere.


