Remembered some more about ...
… the accident. I was in the shower washing my hair and all the sudden I heard these voices like someone was crying/screaming from pain. At times it looked like he was gagging from blood or whatever he had in his mouth. I got a feeling of being in the ambulance but no visual and the other person that was in the accident with me was in the ambulance too. I wasn’t screaming. I wasn’t able to move and I remember shaking either because I was cold or because I was nervous.
Coming back to the office today I thought that it could had been something that I had seen on Gray's Anatomy or some similar show but when I remembered that I was shaking and that I couldn't move that made me sure that it was me.