Can someone point out the grammar errors in this text?

None of the dreams that I'd ever had could affect my life as much as this one had. The time wasn’t an issue for me; I was sure I had probably been asleep for days, but that knowing didn’t bother me, my subconscious knew whenever someone was touching me or not. I felt their movements on my body, but I wasn’t able to feel them as well as I had to determine whose hands were on it. I was numb as if the bottom side of my body had been amputated. Most of the people who tried to wake me up were convinced I was dead as they had tried any possible way to bring me back to life, even the doctors thought so. I could feel any tear that had dropped from my mother's eyes, knew I would have woken up if I had known I would be buried alive…