This was a useful and informative article. I think your three ideas about why it didn't do better are spot on and I have suggestions for you.

First, the title and subtitle. There are accurate and tell the reader exactly what is in the story but don't attract readers who aren't already interested in learning about gout. Most of us have only heard of gout in old novels. I'd tie into that.

Is Gout Something Only People in Old Novels Suffer From?

YOu can do better than that but I think you get the general idea. GIve everyone a reason to read it.

Also, I would mention that you are a nurse in the intro somehow. It gives you credibility.

I'd also consider sharing a story from your friend's experience as the into. Something to personalize gout.

"My coffee date was ruined by gout yesterday. Yes, that really is a thing that happens in 2021. My friend cancelled on me due to the sharp pain in her ---" You get the idea. Then move into the facts and details you do so well.