I was just told by my doctor that I have adult ADHD ( I'm 36, 5'6") and now started with Adderall (generic) XR 30mg. Today is day 5 on 30mg. For 3 weeks I did 10mg and felt nothing - no side effects. But now with the 30mg I feel: dry mouth, a little heart palpitation, really bad headache in the afternoon along with tiredness...... My questions are: 1) are there feelings normal? 2) will these feelings go away? In how long? 3) when do I know Adderall is working for me for my lack of attention/concentration?