So I haven't been keeping the best track of my lucid dreams, but I believe I have had about 6 now. I had my first lucid dream back in July of this year. Anyway, the other day, I came home from school exhausted since I had to run on 3 hours of sleep. I fell asleep on my bed when I had only meant to rest my eyes. I had a lucid dream during that nap and when I woke up, I felt these strong vibrations in my head and a few seconds later, it felt like I had just got hit in the back of the head. I got rid of it by shaking my head, scared that I would experience astral projection for some reason. I took a second nap, and I'm not sure if it was a lucid dream or not. I can't help but feel like it wasn't your average dream though. When I woke up from that, I felt vibrations again, just not as strong as before and without the feeling of being hit in the head. I fell asleep again, but woke up from that nap normal. I'm positive I didn't go lucid. These 3 naps occurred within a span of 2 hours.

Does anyone know why I felt these vibrations and the feeling of being hit in the back of my head? I've attempted WILDing and astral projection, but with no real success and have never really gotten vibrations. These vibrations after waking from these naps were very strong. If anyone has an answer for me, I'd be very grateful.