Strange dream

I had a strange dream the night before.
I dreamt that I was driving and was in a queue of cars at a traffic light. Strangely, though I could slow down, I couldn't stop the car totally no matter how hard I stepped the pedal. It kept rolling forward, little by little; I stepped on the pedal, and it seemed to stop, but then moved forward a little, and I stepped again, and the same thing happened. This happened 2 or 3 times that I was afraid I wound knock into the car in front (which strangely seem to move forward too just an inch).
Of course I didn't knock the car in the end...I either woke up or the traffic light changed.

Hmm...don't tell me I'm still having the 阴影 from my earlier accident? I thought I've already cast it aside like some vague memory, forgotten if not mentioned?