I suspect that a lot of times, people have symptoms that they just talk themselves out of worrying over. Sort of the opposite of hypochondria.

A co-worker I used to have talked about how every year, his birthday present to himself was to get a physical and go for every screening that his doctor recommended, because he loved his life so much that he didn't want to ever be caught by surprise. It was the most positive, life-affirming way I've ever heard to talk yourself into seeing a doctor, and I've adopted it since I hit my mid-40s and needed a reality check over getting "old."