Withdrawal symptoms can be terrific. The original problem could be a simple abnormality. But after being given drugs, taking away the drugs can result in serious trouble in many cases. Drugs have to be tapered very carefully by a psychiatrist and follow up during and after drug withdrawal is crucial. Many can experience in high magnitude the ill effects of withdrawal including imagining and believing in unreal things. So follow up is absolutely necessary.
In my case since I stopped follow up during the teenage ended up living mildly depressed for major part of my lifetime. I pray others don't end up the same. Hence I request all teenagers to regard this post with your full attention.