My son was recently diagnosed Bi polar. He smoked some pot and had a psychotic episode. (his gf thought pot would be fun) and ended up in the hospital. He was in a psychotic state for two weeks. Than with the help of medication he was back. I googled bp and pot, and it turns out that the THC in pot can cause people with certain mental conditions, to have a psychotic break. He is back to how he has always been. It took two months in total and meds. He is still recovering from injuries he suffered while he was in a psychotic state of mind. Just an FYI, learned by my son the hard way.