I dunno - most of the research I've seen strongly suggests that hypnotic regression is a
slippery slope to false memories, even when done by a licensed psychotherapist. I'm
not a professional in this field, but I think you should think twice, or even a third time.
Since you got dizzy and passed back out after seeing the light, based on others similar experiences it is possible you were abducted. I would suggest
hypnotic regression.