Is it normal to dream about being dead?

I'm currently withdrawing from risperidal so that might be it, but what happened was, what sounds like a normal dream, actually felt like a nightmare to me. The worst I've ever had. In the dream, I found myself floating in the air in a graveyard, but I couldn't move very much at all at first. Beyond the grave it looked like there was a city just outside the church.

I didn't recognize the place. I felt numb. I was trying to move but it was very hard and eventually I could turn myself around, but it took a lot of effort, and behind me was a gravestone that said my name reading "In memory of Samuel (me), 1991-2012." At that moment I panicked. I thought I was dead and thinking, "is this what it feels like to be dead." It was such an unpleasant and scary feeling.

In real life, I'm suffering from depression which is why I was taking medication and had strong feelings about attempting to commit suicide. I'm telling you that because maybe it has a connection with the dream and explains a bit why I was having it, but back to the dream. I thought I must have killed myself or I died somehow, but I couldn't recall because obviously I never died in the dream, I just remember appearing in this graveyard.

After a while, I found it slightly easier to move for some reason, or in this case float, though I was still struggling. I was slowly heading towards the gates closer to where the city was. As I float past the gates I saw some cars and some figures of people, but it was as if everything was in slow motion. Maybe that's why I was moving so slow.

I came closer to the people to get a better look, and I was right there with them, walking past me on the pavement, but I couldn't see them any clearer, only bigger. Their heads didn't have a face to them and they were all fuzzy. I shouted out "Hello, can anyone hear me?! Can anyone see me!?" many times, but nobody, or what looked like nobody paid any attention. I figured they couldn't see or hear me. They just kept walking past me.

Then I started to panic even more, so much that it almost felt like a panic-attack because I thought I was actually dead. I didn't want to be dead. Not really. Not if it means being like this. I always figured something like this would actually be cool, floating around when you're dead and just doing anything you want, but the actual feeling was so unpleasant that I can't quite explain entirely.

I suppose a sudden sense of isolation came into it. Being on my own for eternity and just floating around like a ghost, that being the only purpose when you're dead. Even living with depression felt better than that. I was thinking I was going to be like that forever. But as I woke up, my heart still beating, and actually sweating, which normally never happens, came out of the dream with much relief.

Can someone tell me what it means? I heard you can get bizarre and disturbing dreams from withdrawal of medication like mine, but is it something to do with having thoughts about killing myself as well? Thanks.