Yes I Hope So My Son Has Used Durgs Before

yes I hope so my son has used durgs before so I don't know if this caused the promble or not but he has the same symptom as this describes he thinks people are whatching him and are out to get that his friends are recording him on there cell phone ect. he want listen to me what do I need to do to help him he still is working I just don't know wht to do