http://en.wikipedia.org/wiki/Missing_time
Missing time is a proposed phenomenon reported by some people in connection with close encounters with UFOs and abduction phenomena. The term missing time refers to a gap in conscious memory relating to a specific period in time. The gap can last from several minutes to several days in length. The memory of what happened during the missing time reported is often recovered through hypnosis or during dreams.
Have felt you have missing time and no reasonable explanation for it and scared to tell someone, knowing that they will call you "crazy"? This a plausible explanation of why and to free yourself of this guilt because it is not your fault.
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