I suspect I'm Bipolar and have to monitor every weird thing to do with my head but the problem is I'm not sure if this is weird or normal so..
I was laying in bed failing to sleep and kinda phased out (no real way to explain it, it's like you get really disoriented for a moment) and heard a loud crash kinda like an explosion and books falling over combined. I get this a lot but never take much notice. It's a split second in and out type of thing and I usually shrug it off. But it happened again a few minutes later except instead of an explosion type noise it was three voices I'm unfamilar with (not that I have many voices in my head) and the first one I did not catch, but she was an old woman, the other two were an old man (who said mother in Japanese) and a young boy (who said brother in Japanese). It lasted maybe a second or two before I came out of it again. I've had the loud bang one while not in bed or remotely tired, but this is a new thing.
So erm.. is it normal to just phase out for a moment and hear voices or bangs like that? I should note my room was silent except for a clock and the buzz of my PC fan. I'm used to these and my clock makes no noises except tick and tock.