This is a reasearch thread, aint getting into it with theories, only questions

It has been happening a few times, using projection by will (which I barelly succeed, because I get really scared) -- Note: I get into OBE while finding my way out of a lucid dream, but I still process workouts to do it by will - from awaken state.

This is it:
I lose the sens of my body dimensions really fast after I close my eyes, when this feeling happends, I know I got a higher chance of experiencing it. I dont feel "myself" to be right beside my eyes as usual, as distance between my body parts are differents, I usually have a distance impression, similar as I would be on top of a mountain, my hands (for instances) being felt big, but far... Further in my meditation, I dont feel vibrations, I rather feel myself expending slowly, and "moving in place" side ways, I dont hear sounds, like usual rice-crispies poping sounds

And it comes very suddently, my (projected) body - starting by my foots, and legs, lower body, then everything else then my head, is being "vacuumed-up-like" to the ceiling. I see nothing, except somekind of "flow of energy" going up, then my brain becomes my anchor (by will, lol) blocking me from being sucked up from up above. Because I dont want to go that way, I'm expecting a head-off-first take off, or please at least a parallel one please, if it's not too much asked haha :p

This feeling of the vacuum may push my imagination to feel the sound of a vacuum, my brain trying to explain to itself what is happening, but I dont see any.

My awarness is strong, as when I decide to stop it, it's so easy to turn my head, my body respond easily, it's not like that usual paralisis-like phase when comming back. My body is a bit heavy, but not as in other case where it seems like a "morning wake up after a regular deep sleep"...

Why

Is this force driven by subconscious, by hidden will? Can some attraction suck me out? Could it be someone, or entity? I never ask for a guide, nor having will for that specific "getting out method". I feel scared of getting somewhere I dont want to go, like any RTZ place nor astral planes that I'm not focusing in

If I should let it be, someone should makes me believe so, using strong reasons and advices...
Normally I'm easy going, carrying less fear, but I can't mention enough how much this mechanism needs to be understood before I can go on.

Thanks for your help!

(Edit: I find that this way of leaving makes breathing and leaving of other sens really ackward)