Nightmare/dream interpretation?

It was an extremely quick nightmare. I was dreaming about something, until a bunch of pebbles morphed into an orangish darkish face. Then, all of a sudden, my legs felt like they were vibrating, and I could barely move my hands. I wanted to clench one hand to my wrist, but I was moving so slowly. I eventually did, and it felt like a light touch. I really did think I was about to die from some earthquake or whatever, and my heart quickened and I felt like I couldn't breathe. Then I opened my eyes and the feelings disappeared.