Strange phenomena in fever

I don't know if you have ever experienced some strange phenomena when you have a fever . Now I'll talk about a few strange phenomena that happened to my grandfather and my father when he had a fever . The first are my grandfather's , grandfather he was more than 30 years old , once at home at night suddenly on the fever , fever is very strong , grandmother said ginger soup can relieve high fever , it gave grandfather boiled ginger soup . After he drank it , he went to bed and rested . At that time , living conditions were very poor , grandpa's family lived in a small house in the old city , the door is a long alley , with the kind of paving slate from the main road , about a couple of hundred meters , leading to another main road . Both side against the alley are residential areas , grandpa's bedroom window is facing the alley . At that time , grandpa just lay down for about ten minutes , he heard a sound of footsteps from the alley outside the window , as if someone was running , the sound of shoes on the gravel road clattering . The footsteps ran in from a main road , becoming clearer and clearer from a blur , then ran straight past the window , and the sound became blurred again , and slowly became inaudible . Grandpa is still confused , who is running in the alley in the middle of the night ah ? In the middle of the confusion , the voice came again , the voice became clear again , it seems to be from the other side of the alley back to run . Grandpa called out to his grandmother and said , " Who is it ? who is running in the middle of the night ?" . Grandma said , " You're talking nonsense because you have a fever , who is running ? " . But that night , Grandpa listened to the sound of that voice running back and forth in the alley several times , and then fell asleep in a daze . Later , grandpa's fever went down a lot , and he didn't hear that voice anymore . Some people will say that it is normal to hallucinate when you have a fever . But the weird thing is that the sound of footsteps appeared again when my father had a fever . This incident , I will briefly say it . This incident is not remembered by my father , is my grandmother told me , when my father was in elementary school , once drank cold water , came back to feel cold limbs , that night the fever . At that time , my grandmother still boiled ginger soup for my father to drink , and then used a wet cloth on my father's forehead , and then let him sleep . However , my father could not sleep and always said to my grandmother that there was the sound of running in the alley , back and forth , which was annoying . At that time , grandparents still lived in that house , and my father slept in the very room where grandpa had slept with fever before , with the same alley at the door . And this time , both grandparents were there , and they didn't hear it . That's when grandma suddenly said something to grandpa , took out a pile of things for ancestor worship in the yard , took it outside in front of the alley and burned it , then came back and asked father again , " Can you still hear it ? " . Father said the sound was getting farther and farther away , and then it was gone . Later I asked my grandmother why I had to burn something so that the sound would disappear . Grandma laughed and didn't answer . But she said that when people have a cold and fever , their yang energy is weak and they tend to see or feel dirty things . But with the development of the modern medical system , hallucinations can occur when you have a fever is recognized as normal by the medical community . For me , I prefer to believe that the sound of footsteps in the alley was just a hallucination of my grandfather and father , and not the so-called " dirty things " . What do you think ?