Disturbing experience with loud noises!

[Astral Projection]

Hi, I have rather disturbing experience to share with you, and I would like to hear your opinion because I don't know what the hell happened
Anyway, last night when I was sleeping at one point in dream I was inside some house (never seen it before). I decided to go out and then I realized I was dreaming. It was pitch dark and I tried to force light (most of times I can control surroundings in my dreams) but then I heard very very loud noise and it was high frequency. Same noises woke me up and I found myself in bed hearing same loud noises and feeling light vibrations. Firstly I tried to go with vibrations as I normally do but noises were too LOUD and as I drifted away frequency of noises was increasing beyond audible human range (20kHz). When I tried to decrease vibrations frequency of noises was decreasing (but they were still in high freq). Then I heard some very distorted voices which were saying to me something like "get outta here", "don't ever come here"... First thing that popped to my mind were - ALIENS (I don't know why I was thinking that, but now I know that is silly). I tried playing with vibrations to eventually force OBE but I was scared I could loose my hearing (yes, noises were that loud and high!) so I stopped my attempt. I forgot to mention that in one point I raised my hand, moved it and watched it (when noises\light vibrations were present). I am still not sure if it was my 'physical' hand.
Anyway after that attempt I turned to other side and just tried to get some sleep but moment after falling asleep I saw one bright ball of light flash in front of my eyes. After that I saw another bright light flashing but this time it wasn't a ball of light but stroboscope-like flashing... After that I fell asleep.

I occasionally used to hear noises before leaving body and also seeing light flashes but they were never SO loud and disturbing. And I never saw a ball of light before, nor hear some voices...
Now could someone guess what the hell happened? What do you think could I loose my hearing if I try to force OBE or something else when (or if) I experience this again?

[Xanth]

Hypnagogic imagery/sounds.

Just this morning, after I woke up, I laid back and started my rundown... within 5 minutes, I heard a loud bang come from our downstairs.  I knew exactly what it was though, so I didn't bother moving to check.  It was a sound that, if my girlfriend sleeping next to me had actually heard, she would have bolted up, that's how loud it was.

It was just hypnagogic sounds.

[Astral Projection]

Even the voices? So I shouldn't worry.. I will play with this more if I experience it again. I never heard sound loud like this, thats why I was scared..

[Farther]

I have heard warnings to get away a couple times and that's exactly what I did. I'm not messing with places I shouldn't be. As for the sound, I've never had that happen.

[Astral Projection]

Well warnings could come from my mind, so I am not worried about that. I think I found the answer: http://en.wikipedia.org/wiki/Exploding_head_syndrome

[Xanth]

Voices... Bangs... yup!
It's all just created by your own mind.

Ignore it.

Especially if "something" tells you to "stay away"... just ignore it. 
You're not going to get hurt.

[Astral Projection]

Yeah.. Even at some point a thought crossed my mind - "a brain tumor" lol
but that was just a stupid one like "aliens"
thank you