My husband, Richard, likes to say, “If it’s not broke, don’t fix it!” That’s what he said to me when I first noticed the small bump on the right side of his head while we were dating.

I’m a physical therapist and have dealt with patients with musculoskeletal, orthopedic and neurological issues, so I knew to ask him about headaches and vision changes. But he didn’t have any other symptoms at that time.

Brain tumor symptoms...