About a year and a half ago my husband went through a phase for a couple of months where he thought everyone around him was mimicking him. Even people we did not know. He was convinced they were emphasizing his behaviors like tapping his foot, coughing, licking lips, etc. He went on like this for about 4 months, and talked about running away from it all. Since then he has been diagnosed with ADD, bipolar, depression, and anxiety. He also has memory issues. He says the memory issues are from abusing marijuana so much in his youth. I read somewhere that this can also cause schizophrenia. Is it possible to go years between schizophrenic episodes? Could he be schizophrenic?