just got back from donating i felt like i was going to pass out at the end lol (they said that type of feeling can happen your first time) they gave me some juice for my blood sugar, i had started sweating pretty bad at that point, was sweat all on my shirt but, as I started drinking the juice it went away and I started feeling normal. the whole thing was pretty easy and painless didn't take too much time, had brought headphones to pass the time. i'm feeling pretty much normal now, a little slow but, fine.