Attention Deficit Hyperactivity Disorder (ADHD) - I have just been diagnosed with ADD. This is my 3rd day of taking adderall 10mg in the morning. It is wonderful and helped me so much, except my heart feels racey. Is this common? Is it possibly because of the dosage or maybe the time release would be better? I am prone to anxiety as it is. Just wondering if anyone has had same side affects when starting, because it really helps me otherwise