Weirdest feeling ever on shrooms, was it a flashback?

Well i was tripping the other day and all of a sudden I felt a shock in my neck. The second I felt it I remembered when I was about 12 getting shocked by an electric fence. I hadn't been thinking about it, but it felt exactly the same...same tingling same reaction, everything. Now I know flashbacks are usually when you revisit other times you were tripping, but could this have been a flashback just to another point in my life, and was it even a flashback at all? Like can you have a flashback of just a feeling? Because that was all it was, and nothing else, just the feeling of being shocked by the electric fence.