I'm not expert it this, but i think it is a normal hallucination ! 
The thing is.. when you get into sleep paralysis with your eyes closed, you are most likely to hear sounds (similar to what you described) and see flashy colors and stuff.. So what you did was exactly the same, except , you didn't keep your eyes closed, so you hallucinated with your eyes open, so you saw lights, and heard high pitch sounds ! ..
Nothing to worry about :p it's all a part of your brain getting into paralysis ^^ .. (you just experienced it with your eyes open)
If you have any questions, feel free to ask !
|
|
Bookmarks