Last week my wife suffered from terrible headaches, a presumed migraine, and couldn't sleep. We visited two specialized doctors in Bangalore's reputed Manipal hospital. We paid our fees, got new pills - none of which helped - money paid, misery continued.
That's when I decided to act myself. I questioned Maureen in detail about her pain, looked up the internet (particularly wikipedia), and made my own diagnosis: Infection of the right superior sinus. Then we went to our home doctor, and I discussed the issue with him, and convinced him to prescribe a certain antibiotic. Two hours later, all pain had stopped - and she improved ever since.
I believe it shows how much the internet can offer empowerment- for the least, it's a good thing to challenge your doctor.