WILD - What am I experencing?

Basically when I attempt WILD, I focus on my breathe and basically I hear this noise that gets louder kinda of like a rushing/vibration sound but I dont feel heavy vibrations and I am able to move my arm.

I sometimes feel like little jolts or pricks in my body. Also I get a bit (semi horny) - I dont know why either

What am I experencing? Is it a sign of early SP?

Early sp? If your feeling rushing or some kind of vibrations I'd say you're in sp, if you can still move your arm I'd suggest just twitching it every 15-20 seconds which will make your body paralyze that area as well as the rest of your body. Don't make the movements too big though otherwise you'll come out of it.

Hope this helps :)