ADD? Lack of Concentration

I have made an appointment with our family physician. I have found myself lately have a real lack of concentration, not being able to finish things, and just down right forgetting things. I have had a lot of things going on in my life and maybe trying to burn the candle on both ends. I was listening to a talk show about ADD and I do seem to have a lot of the symptoms. How is this treated? SIde effects of prescriptions?