Nightmare of the day

Last night I dreamed that I was part of a team of four spies visiting a foreign inteliigence HQ. We were given badges at the entrance. However, there was no badge with my name on, only one with the name Diana. Diana was one of our chief spies and I took the badge reluctantly as I was worried I'd be an assassination target carrying her ID. After we entered the building, the lights went off. I couldn't see where the others had gone. I had to feel my way around and there was very little air so I could hardly breathe. At one point I was cocooned in a tunnel of soft material at a 45 degree angle, pushed in from all sides, barely able to move forward and desperate for oxygen. At last there was a blast of fresh air and a flash of light. I was in a bedroom which had a staircase going up from it. I saw a dead body on the bed and a man running up the stairs ahead. I ran upstairs behind him and the light went out again. In the dark at the top of the stairs there was an illuminated sign: "Unit for causing Psychological Breakdown". I wept and then woke up (not weeping!).
Memo to self: don't eat mozzarella late at night!