Ghost sickness

"ghost sickness: A syndrome believed by many American Indian tribes to be caused by association with the dead or dying and is sometimes associated with witchcraft. The sufferer is mildly obsessed with death or a deceased person whom they believe to be the source of their problems. Physical symptoms may include nightmares and or sleep disturbances, weakness and/or fatigue, diminished appetite or other digestion problems. There may be dizziness or fainting and sometimes even loss of consiousness. At times the sufferer may experience a sense of being suffocated. Psychological symptoms may include anxiety and fear or a feeling of being in danger. He or she may also experience hallucinations and confusion. At some point there may be a sense of pointlessness or depression.