This makes it look like I could even write historicals and use Chinese medicine -- the West knew about it, it just wasn't paying any attention, except for a few individuals who used it among the Western population.

I wish more people realized that part of modern China's strength is its ability to recognize when something works, and then find a way to incorporate it into society. Did you read the bit about children doing eye exercises, and the attention to proper lighting in schools?

Preventative medicine. I just found out that something I've been using OTC has gluten. I have calls in on the Rxs, sigh....