I keep having really ****** up dreams?

I keep having really screwed up dreams and they are totally random. Last night I had two dreams, in one i was sat in the back of my car about to jump into long grass and i noticed a lion hiding in the grass so i got back in my car. In my second dream I was having a beer with my mate who is currently in Afghanistan, sat in a bar with a load of guys that I served with. Another time 2 of my dead friends appeared in my dreams, both were cremated and they were saying about how good their new clothes were. Both these guys died about 4 years apart and both dreams were about 2 weeks after they were cremated. I've also had dreams about running from big tidal waves, my dads grave (he isn't dead), dead friends talking to me, people getting fired from their jobs, different places where i end up going in real life, and different situations that happen in real life........am i insane?