One example: sibling had become dangerously underweight due to difficulty eating/swallowing. There was eventually a barium swallow test. One of the nurses excitedly told sibling after the test revealed clear abnormalities something like "wow, I am sorry, there is something clearly wrong here." The previous attitude having revealed (even if not in so many words) that she believed sibling to be a faker wasting time.

I don't know if CFS was even the right label for the cluster of symptoms. Even in infancy there were many more problems with getting sick than the other kids in the household experienced. Infections and a cluster of other symptoms that ended up labeled CFS grew really severe in adolescence through mid 20s, then seemed to (mostly) go away as mysteriously as it had come. It was nearly a decade of misery that never had any clear diagnosis.

I've also seen a friend with lingering complications from third degree burns suffered 10+ years ago be treated pretty shabbily as she tries to keep her pain under control. Modern medicine in the US seems pretty darn good at treating acute problems with obvious causes and fixes. It seems to be pretty crappy at treating chronic issues, especially ones that don't have good diagnostic markers. If I ever end up in the hospital again I hope it's for a nice obvious problem like a broken leg.