i started taking adderall a month and a half ago. i started at 10 mg 2 times a day.. and it was great but i didnt feel like it lasted that long so i asked for an increase to 15 mg 2 times aday. ive only been on the 15mg for like a week and a half and the past 4 days its like i dont feel it. i feel lazy, sad, kinda dazed some times... is that normal??? do i need more or less? or will the sadness and daze go away soon?