I always wanted to ask. Does anybody have physical sensations in head when just about entering a LD via WILD?

I have a rather strong sensation in my brain. Top and back of the head, feels like something just turned on. Fizzing, almost bubbling, and sounds like when you put alka-seltzer in water. Not sure if I hear it or only imagine hearing it, or associating the sensation with familiar sound.

But the sensation is there every time when less then 3 seconds from entering LD via WILD. When I feel that, I know I crossed the event horizon.

Happy lucids