If I thought I was abducted by aliens I would certainly tell. At least I think I would, I’d be too scared to just go on like nothing happened . I’d tell my GP or therapist or whatever other professional etc I hope they’d point me to the right directions. Abducted by aliens, possessed by demons, microchipped by government, chosen to be a next messiah etc etc are extremely common motives and themes... if I all of a sudden thought any of this was happening to me I hope I’d be telling, not trying to hide it. I hope I would