Had an experience last night with the same buzzing/humming and sense of fear or presence in the room. I've had plenty of experiences before that I've put down to sleep paralysis - These have always came after a rough weekend when i haven't got enough sleep and been really tired or after I've over-slept, which was the case last night.
The funny thing was I was able to tell myself what was going on and i went lucid at the same time. I tried to fly out of my room, lol, but it was more like a floating sensation. It was dark and i had to feel my way around with my hands against the walls. I think it was because I had my eyes closed. I'm wondering now if i could've had a bettter experience if i opened them at some point.
At another point during this experience I tried to go through a glass window. Not by breaking it but go through it like I was invisible. As far as I can remember I just bumped up against it and didn’t get very far (oops!). I put this down to lack of practice
Tonight I think I’ll try it again (tell myself to go Lucid as im trying to go to sleep) and see if I can do any more amazing or fun things. Hopefully this time with less fear which I think held me back last night. If I let go of the fear I think it could be a really enjoyable experience.