I was diagnosed with Type 2 diabetes in 1997 at age 32, but I'm Type 1.  I never thought that diabetes was such a difficult disease to diagnose, but there are multitude categories, and we don't fit into them nicely.  The article from the Wall Street Journal resonates with me perfectly.  See the link at 
online.wsj.com/article/SB10000872396390444840104577553462450522098.html
Comment on whether you had a difficult time receiving a diabetes diagnosis.