Weird image in mind when falling to sleep, help?
I'm nearly 20 and suffer from bad Anxiety. I don't go to bed until the early hours because i used to have panic attacks when it was dark at night when trying to sleep, so i didn't go to sleep until it was sunrise and light but now i just cannot get out the habit and it's really effecting me. When i'm trying to fall to sleep i always have toone's on my mind, my mind is very active and i just cannot settle even though i'm exhausted. 4 time's now i've had this happen to me, as i'm falling to sleep all of a sudden i wake up from a huge jerk and a visual of black and white thick lines moving around like a spiral and a loud cracking noise, all at the same time, it scare's me so much i wake up and have a panic attack. I have noticed the past 2 times before falling to sleep i'm heavily thinking about stuff, so basically i'm very stressed but within seconds i'm falling to sleep, so i'm not sure if that is causing it. It feels like my mind has swiched off and is re-booting itself, it's horrible. I know so many different sensation's can happen whilst falling to sleep, i regulary get the falling sensation. Is this just a combination of different one's because my mind just isn't ready to fall asleep so quickly and wake's me up? Cos' doesn't your body send the signal to your brain to fall to asleep or something?
But yesterday as i was again trying to fall to sleep, i got it, but this time it was a result of a loud crashing sound of someone shutting their garage door which scared me half to death and woke me up from falling to sleep, it came very quickly, so that was weird. Would of that been because i was disturbed whilst my body was in the mode of falling to sleep?
Please help me out, i'm scared to go to bed incase it happens again!