My boy friend of five and a half years has been having some serious paranoid thoughts lately and they are becoming more and more disruptive. The problem is he also takes crystal meth and pot quite frequently and any suggestion that they crystal especially might be causing his problems is met with flat out denial. He has insisted to the point of calling 911 that his friends are trying to kill him by putting krokodil in his pot. I've tried to tell him that the idea is ludicrous and the symptoms he is pointing to like sores on his face are being caused by the acidic sweat caused by the crystal. No matter what I show him on the net that says there is no krokodil in pot, he won't believe me. Earlier this year he thought that the world was going to end in a matter of hours and he was seriously convinced it was. He was completely crazy. How much if this is drugs and how much is mental health? How can you tell the difference? He never acted like this before and he\s used for awhile even after I got clean. I just don't know what to do for him.