My 12yr old son started this medication 2 1/2 days ago and I'm Concerned. He is sleeping 18 hours a day. I'm having a hard time giving him scheduled doses because he is NOT functioning and I've pulled him out of school in hopes to get him regulated. He suffers from severe/chronic headaches. Will this pass??? And if so... I've seen some posts that make me believe this drug has withdrawal side effects if stopped. Seeking peace of mind. I feel like I am seriously drugging my son