Strange electrical vibration with hoovering sucking entity

I thought I'd try posting about this here in the hope someone might have had something similar.

I had an experience a few months ago where I saw an entity next to my bed. I decided to start a thread about it to see if any of you have seen it before/know what it is.

I was brought suddenly around from sleep by a strange electrical 'hoovering' type vibration which seemed to permeate the room - it was like you could feel and hear it. (I should add at this point that I have had sleep paralysis and out of body experiences many times and this was not the same as the vibrations etc. from those states).

Next to my bed I could see an entity that looked to be no more than 3 feet tall. It was level with my middle and was making a strange vibratory hoovering/suction with its mouth. Its mouth was like a horizontal line, a slit of a mouth.

I searched on the internet to see if I could find anything that looked like it, and this is the closest I could find (minus the teeth and bone) it's the first image in the gallery section:

[link to villains.wikia.com]

Has anybody seen a similar entity? Or have you experienced that strange electrical hoovering vibration in your room?

Thanks for your time and sharing any similar experience/feedback