Breathing Badly

I had a really weird dream last night where I couldn't breathe properly. I was lying in a hospital bed holding my hand over my chest trying to breathe but found it really difficult. There was a nurse standing over me who I thought I knew... but couldn't manage to say anything. They opened my eyes and said they knew I was awake and I could hear them. I thought my asthma was coming back. After sometime I ended up getting out of the hospital bed and going for a walk, I passed out somewhere down a corridor and the nurse came back to me, I ended up back in the hospital bed. I don't remember much after that.