[anonymous]

You may find this site helpful http://skeptvet.com/Blog/2016/10/overdiagnosis/

It’s user friendly, run by a real vet. However, don’t expect specific recommendations, as they have not examined your dog and do not know his history, it would be unethical for them to do so.
A lot of good information over there though. Use the search engine to look up specific topics.
PS: Nothing is being sold at that site, no membership fees, nothing.