Weird experience?

Okay, sorry if this is all over. I just had something weird happen. So I was laying in bed with my eyes closed, basically trying to sleep but it did not feel like I was fully asleep. But I WAS having a full on dream, which I kind of knew was a dream? Or I didn’t, but it didn’t feel as if I was completely asleep like I mentioned. And then in my dream I got up and felt like I was going to faint, all of the physical sensations of faining while the dream is still playing out, then my eyes opened. Is this normal?