But... in my case...

Without prior consent, it remains a misdeed of those who have imposed an experience on you that you did not ask for. Nothing will bring back the missing memory unless you ask someone with whom you are still in contact and who you assume could give you an answer? Seems unlikely after the way you described the event. No one would agree that drugging someone on purpose is justifiable. Because it isn't. But since it did happen and is irreversible, I thought it was creative how you dealt with the experience literarily and used it creatively to tell your story. To have survived the situation without putting yourself or others in danger during that time is a fact, isn't it? Similar to sharing other experiences where you found yourself in mortal danger and came out of that danger unscathed. What does not kill us can make us strong, I think there is something to this saying.