I was hungry and thirsty in dark yellow status. While crawling i suddenly got black screen with the message i am unconscious. My coop partner tried to warm me, bandage me, monitor my pulse (it was steady) and gave me heart massage. We had no saline sol nor epinephrine. After 15min still no return to the character and black screen although my coop partner said that i am moving and stand up and look healthy but my own screen was still blac.