Weird lucid dream/sleep paralyses occurrences.

I have had this happen on at least 5 different occasions now. Basically as I am falling asleep I feel like I am still awake but I know that I am not fully awake. It almost feels like sleep paralyses except I know that I can wake myself up anytime. I had it happen again last night. Basically, I know that I am currently not in the woken up state but I can see, I am not sure if my eyes are open or closed at these times. But when I am in these states I try to get out of my body, and I feel this heavy pain in my teeth and chest. After a couple of tries, I finally succeed. I float up but usually it has been in my room, with weird differences, but this time I was in something that looked like my room but much bigger, with different things on the walls. I try to find myself or my girlfriend laying in bed but I never am able to, it is extremely difficult to float around freely in this state and turn your "head", I have to give it a lot of focus and like I said it kind of gives me an extremely heavy feeling in my teeth/chest. I left my body about 4 times last night, each time was somewhat different, every single time I come back to my body I know that if I move, I will wake up and not be in that state anymore, but I never want to wake up from it because it is so cool. In 2 of those OBE's I could feel something grab my astral body and swing me around fast in these mysterious rooms, honestly I loved the feeling of it. What made me choose to wake up is in my last OBE, I saw this dark looking spider entity which was in the corner of the room which frightened me and made my stop doing it. I could have done it none stop, literally. I moved and woke myself up and went to sleep. I have also seen a gigantic, white blob entity in previous nights and each time I would be out of my body the entity would move spots. That time the place I was in actually looked like my room. I remember one time I also floated far enough to be across the room and look at a small night light I have from a different angle, which definitely looked exactly the way it would have if I stood and looked at it when awake. These mysterious occurrences are absolutely mystical and amazing. They can get uncomfortable but the fact that I can wake myself up on demand makes me not fear them. Has anybody else had this happen to them? I have had lucid dreams but this feels different, it feels so real and my complete consciousness is still there, except I don't fully remember everything like I can when I am awake.