I'm exactly the same. I thoroughly research a condition before seeing a doctor, and have done so for years. I always make it clear that I've done some homework and apologise in advance for any "Google knowledge", but it's usually apparent quite quickly that I've developed more than a superficial understanding of the subject. In my experience, good doctors appreciate informed discussion and sensible questions. I've had some fascinating conversations with GPs, surgeons and specialists in both the UK and Thailand about treatment options, surgical techniques and long-term management plans. As for age, I generally prefer doctors in their mid-30s to around 50. They tend to have enough experience while still embracing new techniques, technology and current research. A good example was my ligament reconstruction a few years ago. Before surgery I shared peer-reviewed research highlighting shortcomings in the standard bracing protocol and discussed alternative approaches. The surgeon, one of the best in Thailand in his field, was extremely receptive and even adapted part of his post-operative protocol. Others have described him as arrogant, but I never saw that. I saw confidence, expertise and a willingness to engage in an informed discussion. I suspect the difference often lies in the quality of the questions being asked.