Lately I have been noticing symptoms of inattentive ADHD. I've had these symptoms since I was a kid but I feel like it is effecting me the most in my teenage years. In school, it pains me to pay attention in class for extended amounts of time and It seems impossible to get work done ahead of time. At home, it's the same situation. I've tried letting my parents know about this but they brush it off as an excuse. How should I go about dealing with this and where can I go to get diagnosed?