Hi all, am new to this forum. Advice needed from all kind souls out there. I suspect that my son is taking drugs although I'm unsure which kind of drugs. Recently he has been returning home late and everytime he returns home he locks himself at home. In the morning when he wakes up, he always seem to be out of sorts and runny nose etc. I am really worried, any ways how I could approach him? I am really confused. Thank you for your help in advance.