Listen, I experience the same thing sporadically at times. I don't know when it will happen, but when it does the dream is either precognitive, and I experience precog. dreams even without paralysis. However, I am new to this site too. Please check out the dream I had the other day. My paralysis occurs when I try to wake up (and now I know it is happening to me so I am probably in some semi-conscious state) and I can't move my legs, arms, mouth, face or anything. However I have never felt suffocated. Check out my dream I had the other morning:

I dreamed I was walking, and a rather large black bird flew over my head. Then, I was lying on the sofa (where I actually fell asleep in the first place, kind of like I could see myself sleeping and I was trying to wake up and move my arms, but I could not seem to do it) and another pretty and average size blue bird came through the ceiling. I kept trying to move my arm, but all I saw was this opalescent form of my arm (kind of like my spirit) coming out and then I felt my spirit fly up to the roof. Then I kept trying to come out of my body and break out of the roof but I was never successful. Then I wanted to wake up before my husband left the house, so I kept trying to move my body but couldn't. I felt there was a red bird near and I was a little worried about it being the opposite of what I felt was the intent of the blue bird. Finally my mind shifted into another dream in which my husband and I escaped from a tornado to an underground parking lot with a shopping mall. After, I awoke from the dream, I was glad to feel my arms and legs move. My husband gave me a kiss, and said was going mountain bike riding. I did not want to interrupt his plans, and he is normally not too into dreams, so I did not tell him about the experience that just occurred.