This is definitely a neat and unique service, however I can see some flaws that need to be addressed.

What happens in the case of a misdiagnosis? Not doubting your skills or anything, but over the internet not seeing a patient in person, confusion can happen.
Furthermore, there's no guarantee on the information being given, nor any proof of your qualification.

I'm sure that you're a talented doctor, however on the internet you need more than word of mouth. If there's any proof you can somehow provide that shows your skill and competence, that would help a lot. Good luck with your service!