My dh has always been overly concerned with his health. His mother was the same but to some extent had legitimate health concerns. I always thought dh (only child of a very dysfunctional family) equated ill health with attention.
He talks about his health 24/7 . We (wife and teenage children) mostly laugh gently along or ignore. We have private health care and so he has had every last test he might need, I would say 95% of our claims have been on him and his dm.
Because its private they explore the most ridiculous and suggest tenuous links which of course he grabs on to. Mostly they come to nothing but he clings to whatever he can and is on numerous medications (none of which he would die without).
Today one of our children has diagnosed with an issue. Solvable with a few years physical therapy but distressing for our child who is robust and healthy. Anyway they're coming to terms with it but dh has spent the evening talking about himself and his issues and I said (lightly I thought) maybe you need to see a psychiatrist about your health issues. He has eaten me (loudly and to the full knowledge of our children: a disjointed rant) that he does have a mental health issue but how dare I mention it. And on and on. He was savage to me.
This is what his mother was like: whatever issue anyone had hers (or even her distress about their issue) was greater.
What do I do next? He's my husband, he's mostly fabulous. The health thing has always been kind of funny but is getting a bit out of hand. He will rant for the next few days or ignore me or sulk. But the issue will still be there. Its been there for years. There is no room for any of us to have any issues, it's only about him.
I'm pretty sure he doesn't want to be this person either.