I have recently been diagnosed with adult ADD, I am not sure how the medication is supposed to make me feel in order to determine if it is doing what it is supposed to do. I made this mistake of drinking 3 cups of coffee in the am and then taking my first dose. When I arrived at work, I felt displaced, ancy and anxious like I wasn't sure what I needed to be doing. Day two I only had 1 cup of coffee upon waking and waited to take the med. this day I feel light headed and shaky, How do I know it is working properly? I feel my starting dose is too high at 15mg. And will be discussing with my Dr. but wondering what other things I should avoid as far as food and drink.