that's not uncommon for alien abductees.
this guy named david jacobs who's this well-known alien-researcher has CRAZY stories about alien abduction. (that's what he specializes in.) everytime people would talk about implants under hypnosis, he would schedule an x-ray for them. but then they'd always get abducted again before the x-ray and it would be gone. so the one time, this lady he was working with called him up, says that she thinks she got another implant, so he takes her to the hospital IMMEDIATELY, and gets his one friend who was a doctor to do an x-ray right away. and the x-ray comes out, and they can sort of see something non-descript where she said they put the implant. so they order more and i guess fancier x-rays that take a day or so to develop. those x-rays got fucked up at the lab (!) and the original ones disappeared from the hospital! and jacobs has all the medical records to prove when they were taken and that they were lost.
!!!
the aliens don't fuck around!