I think i experienced SP once, although i wasn't even planing to have LD. I was reading on LD, and it says you should constantly do reality checks during the day, so once you're dreaming, the habit of doing RCs will do its job so you'll remember to do RC in dream, so you'll realize you're dreaming and you'll be aware that you are dreaming. But i wasn't even doing RCs, and couple of days later i had false awakening, i was laying in my bad with my eyes open, thinking that i'm awake but actually i was dreaming. I remembered to do RC, so i decided to pinch my left hand with my right hand. When i tried to pinch it, something like electricity went through upper part of my body. It was like my left hand was connected to power source, and everytime i touch it, i get shocked. I got scared (irationally) so i tried to wake up, but i was paralyzed, all i could do was to pinch myself, which means getting shocked again lol. So i decided just to lay calmly and do nothing. I awaked for real after a while.
Was that a sleep paralysis?