UFO details report: I never ever spoke of this to anyone. But it is affecting my head. Several times during my life from the ages of 7 up as recent as last year (40 now) (from the late 70's to now) I have seen the same shadowy image. hard to put into words as it has made me doubt my own sanity. But the closest thing to put it as is a non moving shadow.Normally I have been noticing it a day or 2 after a thing in the sky. Soundless Long slender shape (not round) more like a cylinder. or maybe shoe boxish. not sure. but over the years, I have noticed that one follows the other.I have no idea what I am seeing or not seeing.The more I read on this kind of stuff. the more I doubt my own brain and eyes that I am seeing stuff at all. I think I am going into denial about these things.but the thing in the sky is at night and the shadow is normally morning mid day. never seen it at night.