Concerta and meds

My son has been on Concerta 54 for 2 years now. His grades have drastically increased and his attitude is great while he os on the meds. I do notice that he comes down from the meds in about 8 hours and his relapse is not fun. He becomes extremely emotional and violent. He will cry at the drop of a hat when things do not go his way. He also wants things to perfection. I also notices he picked up some bad ticks like popping his knuckles or clearing his throat. He is very negative when he comes down from the meds and has a hard time falling asleep.

My son is on concerta and has done much better ifocusing in school. I do see mood swings when the concerta wears off and he has been running his fingers through his hair and just told me he is pulling at the hair. Has anyone else experienced the hair issue with this?