Blood Donation

There a blood donation held in my college today. Some of my classmates went to donate blood.. All this while i wanted to donate but i was too afraid.. Afraid of needles, pain , etc... Arrr.... Can't stand it, just not brave enough! At a moment while i was looking at my friends going through the process i suddenly felt dizzy and kinda like going to black out, out of a sudden.. i have cold sweats and i could hardly see anything.. Everything was like spinning, it was blur. I dont know why but i can say its not because i was freak out looking at packs of blood flowing and huge needles.. i reli wonder if i'm too weak... cause of pressure? too much stress that i'm facing these days, pushing myself to hard till i can hardly breath? i really had no idea what am i doing and facing in my life..