Is it unhealthy to look for medical knowledge on internet web sites?

If you are viewing information on genuine sites and not on forums then what you read can give you an insight into the possibilities. However, only a medical professional can give you the appropriate advice and diagnosis. Also, too many people self diagnose from what they read and this is unhelpful at best. Your Doctor is right to some extent, the internet is full of people dishing out advice to fuel their self serving agendas.