Okay, so I have given blood on two other occasions because why not, I have healthy blood and other people need it. I can just recuperate, many others cannot. Anyways, the first time I just donated whatever the standard amount they draw is. The second time I did the one where they pull double out and separate it or whatever. This time I just gave the standard amount. I hadn't passed out the first two times or had any negative side effects. This time however I could barely stand up and my arm was heavy an painful. Then, after 15 minutes it went away and I returned to my dorm room only slightly light-headed. So, about 20 minutes ago I passed outstanding up while installing my new modem and that was the scariest shit in the world. I have never passed out before and next thing I know I'm collapsing and then my roommate is sitting by my head. He'a all "Dude, you've been gone for like five minutes". So I just lost five minutes of my life. Share your blood donor experiences.