Hello! my name is mulan, I am 18 years old and around a year and a half ago I got into a car accident. Ever since my sleep schedule has been horrible, I have to take melatonin consistently or else im not guaranteed sleep at all. But something that's prominent when I sleep is I hear an overwhelming loud vibration sound that continues until I wake up! it happens at random times during the night. Prior to the car accident my sleep was fine but as a child I went through very bad moments of sleep paralysis im not sure if the two correlate but please do tell me your thoughts on how I should stop this!