How does the quality of medical education in China affect the overall healthcare experience compared to the U.S.?

I’m 14, 128 pounds, and 5’4. The doctors said I'm at a healthy weight, but I keep overthinking it. I’ve been working out for 7 months, and I'd say I've been fairly consistent. Yet I think I'm overweight, am I just overthinking it?
Have you ever found old photos or videos that brought unexpected joy to your family? How did it happen?