The effects of carbon monoxide poisoning according to The Poisoner's Handbook by Deborah Blum... Minus night terrors and sleep paralysis. I had those. CM can also cause people to think that their houses are haunted...
"The early symptoms of acute CO poisoning are drowsiness, head aches, dizziness, confusion, and occasional nausea. In the alcohol dazed 1920's doctors tended to mistake CO poisoning for drunkenness... Sometimes the physicians just dismissed signs of CO poisoning as the common mental illness seen among the city's derelicts. That wasn't necessarily surprising either. Exposure to carbon monoxide can also induce dementia, memory loss, irritability, staggering loss of coordination, slurred speech, and even a deep feeling of depression."
