After a number of years with a different diagnosis, I convinced an ultrasound technician to go beyond their exam script -- enough to discover that, in fact, I did indeed have a minor hernia.

If the doctor hadn't been so sure of his diagnosis, this would have been caught years earlier. I'd specifically asked, more than once, about the possibility.

A lot of scrambling on their part, that day, to get me a same-day appointment for consult with a well-regarded surgeon.