Well, I've been trying to lucid dream/astral travel for a while, but I had never used any technique, I just kinda fell asleep and tried to remember i was in a dream(I think that is MILD or something). But today I tried WILD. It was about 4pm, but i was tired from a workout and was probably gonna take a nap anyways, so I said why not. Well... I tried it and at first I was beginning to drift off, but before I could reach SP, my body kind jolted(like my legs and arms twitched and awoke me).
So I was awake, but still tired. I went and txted/bbmed people on my phone for about 5 minutes, and than I tried again.
This time, I made it to SP... but when I got there, I began to feel extremely intense vibrations in my head and arms, and I was thinking, great, I've made it to SP, soon I will be able to go lucid... but the vibrations increased to a point at which they were very uncomfortable and I had to stop/snap out of my sleep.

Any explanation of this? I am going to keep trying to WILD, and hopefully get there soon!

I have had two lucid dreams before, but I"m almost positive they were MILD, where I tried to relax and meditate to sleep, but I just ended up falling asleep but later in a dream realizing I was dreaming and going from there.