Slender sickness

Slender sickness or The Sickness is a sickness that is mostly coughing fits and coughing up blood,with nausea,massive paranoia,vomiting,and extreme exhaustion cause by The Slender Man. Some have had bloody noses,fevers,and amnesia. The sickness is mostly found in targets of The Slender Man or sometimes a proxy.

The sickness has been observed in MarbleHornets's Alex,Jay,Tim,Brian,and Jessica;in TribeTwelve,Noah and Milo; in MlAnderson0's Michael and Denmarlen's;and lastly EverymanHYBRID's Evan.

There is one theory that states that Sigma Radiation,or just radiation,is the direct cause. It has a long line of history in Slender Man and his powers.