I've been having lucid dreams for a very long time, almost every night for as long as I can remember.
But a few days ago something new happened. I was lying in bed, almost to the point where you can't keep your eyes open when I started to feel lightheaded and a bit dizzy. I suddently pulled myself out of sleep at this point and I know I was awake because I had nocked my poor cat off the bed. I was very tired and had to close my eyes again and as soon as I did the feeling came back, lightheaded, then a pressure on my chest like I had stopped breathing. I then woke up again and was breathing fine and the onlything I can remeber was feeling very annoyed because I just wanted to sleep. After that I fell asleep and nothing more happened.
A few nights later still nothing but I then started to want to find it again and try to stay asleep through it. Then last night it happen only once but I managed to wait up and lose it again. It felt like something might happen if I had stayed but I'm not sure what... maybe the beginning of an OBE? I don't think it was just me not breathing in my sleep. Any ideas?

Oh and I forgot to mention after the last breathless feeling a dream followed. I was at my grandfathers house in the back yard and there were bones and carcasses everywhere. Horses, dogs, small animals. Some were rotting, some half burried, some just lying about. It was a rather pleasent dream though. I was taking care of some baby birds in a cage by the barn. I don't know why there were so many bones, or what it means.