First of all, hello DV people!!

I apologize because my post is going to be really too long (and also if it's not at the right place). Also I want to thanks DV for providing all theses informations about dreamin

Part of my background:
During the last 6-7 years I had the following problem:
When I was going to bed really tired. Instead of falling asleep, I was paralysed in my bed. Then some strong vibrations and strange stuff with my hearth were happening. I was really afraid of this, thinking I was close to die! The only way I found to escape, was waking up. I also tried to fight against the vibrations, but they where just increasing, making me feel a lot of pain in my head. I was waking up 10 times before being able to sleep. Nobody has been able to let me understand what was happening...

But 2 months ago, I heard about LD and started to read alot about dreaming. I understood that it was sleep paralysis, vibrations and hynagogic imagery. Around 3 weeks ago, I made a WILD after approx. 6 hours of sleep (i can speak about this, but not there, the post is already sooo long&#33.

Yesterday, I was really really tired, and "my problem" happenned. I woke up two times, then I thought "hey, it's just normal, your are just falling asleep". So I accepted the situation and stay calm. I thought I stay in during 1 minutes, watching some HI, feeling vibrations. I had a very strange impressions:
I heard somebody walking on the 1st floor (hallucination) of my house (I'm on the 3rd), and though something like "my body is on the 3rd floor and my conscious on the 1st", I had this feeling that I was really deep in my "mind".
Maybe i'm not clear, but that's not the point. Then, because I was fearing what will happens next, I woke up. It was really stronger than my WILD experience 3 weeks ago. I'm a bit frustreted of having fear...

My questions are the follows:
- If I try to WILD at this point, what will happen? Normally I should go into deep sleep state, not REM state no?
- Why does this happens only when I'm tired? (my oppinion is that it's because my body is tired but not my mind).
- Does anybody had the same kind of experience/problem?