{cak} Suddenly and loud helicopter like whirling
I was sitting in my bed watching a show on my laptop, nothing was out of the ordinary when suddenly my whole house started to shake and I heard a loud whirling swoosh as if a helicopter was in my living room or above my house. I checked all of my bedroom windows to see if I could observe anything in the sky, after that I checked the second bedroom and also saw nothing. The sound was still incredibly audible so I went to go outside but as I went to go towards the front door it seemed to get somewhat less loud and then once I was at the door it was suddenly gone completely. At the time I had checked multiple windows to see the sky and saw no lights, after the noise was gone I likewise saw no lights in the sky to indicate aircraft or anything, it simply came and vanished.