Nightmarish hallucinations are the answer.
Symptoms include nightmarish hallucinations, extreme panic, delusions, and nausea. It is also possible to mix good and bad experiences on a trip. Other unpleasant side effects include muscle spasms and loss of coordination.
Hallucinogens are a diverse group of drugs that change perception, thoughts, and emotions. They cause hallucinations, sensations, and images that look real, but are not. Hallucinogens fall into two categories: classical hallucinogens and dissociative drugs.
Nightmares contain detailed stories, but hypnagogic hallucinations are usually a series of videos, sometimes accompanied by sound and body sensations. In adults, common nightmares are associated with PTSD and other mental conditions, certain medications, and certain sleep disorders.
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