Yes, a lot of people don't get diagnosed or suspect that they have AD/HD until they are adults. Many people are just learning they have AD/HD in thier 40's, 50's and even 60's.

A lot of medical and mental health professionals still don't really understand adult AD/HD. I recommend trying to find a professional to evaluate you for AD/HD who does understand adult AD/HD. A couple of good place to begin looking are www.add.org and www.addconsults.com