I have been on 109 mg of methadone for three years, I have really bad ADHD and taking 20mg of Adderall xr twice a day, but I have noticed when I take my adderall, I start to feel shaky, weak, and like I m hungry or something,, no matter what I do l, it doesn t work, I never used to feel like this before on Adderall, I don t take caffeine, is there something you can tell me why I feel like this