How old should a child be before it's safe to diagnose them with ADHD?

I was diagnosed with ADHD very young, about 2 or so. My fiance has had it his whole life as well.
I'm a little worried that the child we're going to have is going to have ADHD as well.
I don't want to medicate my child young, because I was medicated very young and I feel it took something away from me.
I wouldn't want to medicate them till they started school, if they needed it.
What would you

Read more ...