Take it before bed otherwise you feel strange and tired.Well that's what I do. I was going to stop taking it until I figured out it works for me as long as I can sleep off the effects.
Not sure what you mean by stupid? Dull, lifeless, can't think? or ? If you google strattera you can see that it does not immediately effect you like a stimulant medication will. So its possible that this is what is going on and you need to give it some more time. At any rate, you should always remain in good communication with your doctor. He needs to know what is going on. Also, he should be experienced with his patients using strattera, so should be able to tell you, what to expect. Good luck!