3 nightmares, can anyone help?

Over the past few weeks, I have had three nightmares and each time been woken by my girlfriend because of my heavy breathing at the time.

The first happened a few weeks ago. In the dream, I was at bus stop at a T junction, where three roads met. There was a road on my right and snow on grass on my left. Someone walked past on the road ahead, walking down the other bar of the T junction (the top bit), down the hill, and I was somehow casting a spell to determine something about them, perhaps who they were, or something of that ilk. Note that I probably got this aspect from the role playing games I play, I don't try and cast spells in real life lol. Anyway, the person just walked past. Then, the scene seemed to repeat itself, only this time as I was casting the spell, the person looked right at me. but carried on walking forwards. Then the scene repeated itself again, only this time, the person turned towards me and began walking right at me. The person's head began revolving round and revealed other faces, as it closed in on me. That's when my girlfriend woke me up because I was breathing funny.

The second nightmare occured last night. In this, I was in a room in a haunted house, with someone that I think was my girlfriend. We had lit candles and put heaters on to get light and warm the room up. Then it started to go cold and I realised the door to the other room was open. I went into the other room, whereupon my black cat Hisspit wasn't just one cat - there were two of her. So one couldn't be her. I sensed something was up and for some reason, to find out which was the real one, I tied one up. The other cat got really happy about this and so I knew that one couldn't be the real one. I untied the real Hisspit and tied up the other cat, which promptly turned into a toy. I remember saying 'Go away. Go home. You are not welcome here' with the toy in my hand as my girlfriend woke me up.

The final nightmare occured the same night. I was in bed, in the dream and there were two doors at the foot of the bed. The one on the left seemed to open slightly, so I looked around and saw a vague shape. It neared the head of the bed and stood there looking. I realised I could see that it looked like an older woman with glasses on, sort of like my girl friend's mum. It was vague and indistinct though, and as my girlfriend woke me up I was saying to it 'Go away. You should not be here. Go away!'

Does anyone know what any of this means?