Hello!My name is Bogdan, I am from Romania, and I was recently diagnosed with ADD. My psychiatrist prescribed me Concerta, 18 mg for a week, then 36 mg for another week, and 54 mg for 16 days. I started to take the pils 3 days ago, but I am tired, lack of motivation and concentration all day long.I do not feel no benefits. Today I took 18 mg at 10 am, then another 18 mg pill at 14 pm and one 36 mg pill at 15 pm, but it didn t work. I ve had a nap at 16 pm, and I slept for about 2 hours. It didn t solve the problem. Please help me. Is it normal to feel like this for the first time of taking ADD medication?