I did very much enjoy the after-effects of donating blood today. I left there feeling light headed so I ran a little. I felt very very high in the cold air. I knew I shouldn't do that but it felt so great. I got too light and sat down for a few minutes. I started settling and got thirsty so I went back to my truck and drank some water and ate a granola bar. I set an alarm, turned on my heat and massage cushion and took a 15 minute nap under an afghan I keep in there. I woke up kind of cold and tired but before my alarm so I went back in and got some coffee just before they were throwing it out. I feel fine now but that light buzz was probably dangerous to walk on and much worse to run but it felt so good at the time. I won't do that again because I did have one rough headache when I had to sit down.