... having but have been severely affected by side effects and I think it gave me a misdiagnosis because of it and worse i think it might be deteriorating my mind and body from about a little over ten years of use i am underweight with no reason and everyone defends the med and blames me for my problems even my mother who thinks its miracle pill i see it as a happy death pill and well help please I am just trying keep healthy and stay alive by choice. I also have Suicidal Ideation. mild though but I think Concerta caused this as part of its side affects as well and I just want to know should I take it or not? I am still going to consult my doctor though I am 22 as now.