Alright, here's the lowdown: My "friend" Z was an avid pot smoker for about a year and a half. He never had any troubles, except the occasional paranoia and embarassment from not being able to handle a conversation while high. Then about 2 months ago, Z bought an eighth from a dealer, and on the way home (in the car), passed around about 8 bowls with 3 other people. Everything was going fine, for awhile. A very strong body buzz, and a very fogged mind that could barely concentrate on anything. He was leaning his head up against the back window and had the biggest grin on his face that he's ever had. Then, literally out of nowhere, a huge wave of unknown, terribly frightening, disturbingly horrible, and all-around mind-altering doom came on him. Everything had a red tint to it, like he was looking through glass, or something. His heart was racing, he was rocking in his seat, and his mind literally had a new thought once every 1/10th of a second. Most of these thoughts were, "What is happening?" "Who am I" "Where am I?" "If this doesn't stop, I will kill myself" "I need to stay at my friend's house" "I can't go home now, not while this is happening.", etc. It felt as if nothing was real, all of his perceptions were destroyed. Like as if everything he had learned in his previous life was fake. He ended up convincing his friend to let him stay at his house. When he got there, he rocked back anf forth in a chair for about 3 hours. He could still feel the effects of the weed, even though it had been a long time since he had smoked. It was the most traumatizing experience in his life. After it was over, his mind felt as if it barely worked. He went to slee and felt relatively fine, with a minor hangover (felt like shit). The next week, he went back to his friend's house and smoked half a bowl to see if he could handle it. When it kicked in, he metaphorically fell into the same pit he fell into the last week. It literally felt like he was falling into a pit, and the pit was the horrible feelings. As he fell into the pit, he recognized what it was, and climbed out. He told his friend, "Shit, it's starting to happen again, but since I know what's happening I think I can be fine." As he went back to his friend's house, he felt high, but not like he used to feel. It was a different high, a scary high. He was laughing at ridiculous things, but he kept falling into the pit and bringing himself out. Everytime he fell in, it felt horrible. Literally, like nothing has ever happened, and what is happening now, is nothing. He felt high for another 3-4 hours. After his friend went to sleep, he was still very confused, and still felt vulnerable to the pit. He went to sleep and when he woke up he still had the weird hangover. He hasn't smoked weed since, and sometimes he still feels like he's falling into the pit, even though he's completely sober. He gets counseling now, and eats healthier, takes vitamins, etc. It sounds like he has developed some kind of anxiety disorder. Maybe derealization or depersonalization, or both. Maybe panic disorder, who knows? Does anyone have any idea what he can do? He wants to do more drugs like shrooms (maybe next week), and maybe start smoking weed again, but he is horribly terrified of the pit, so he doesn't want to risk falling in. He'd like to know what kind of treatment he could use to stop these feelings of non-reality that occur randomly and are so scary that he thinks that suicide is a reasonable option. By the way, he's never been suicidal at any point in his life, and thinks it is ridiculous.