my first blood donation

Hi all...well I thought I'd tell about my very interesting day...as you can probably tell by my title I gave blood for the first time today...one would think it would be quite easy - I thought it was a brilliant idea...since blood type O and A are the most common here in the UK, I thought my B+ would be nice to donate - being that apparently only 8% of the population have it...so off I went with helen a friend of mine...filled out the forms...waited...and finally got hooked up to the machine thing...completed my donation of a pint and just as they took out the needle I felt light headed and whoozy...and then completely passed out..apparently to the point of a seizure - they've actually banned me from giving blood for the next few years and the head nurse wrote a referal letter for the doctor to review...it was very embarassing...when I finally came through I saw 2-3 nurses who calling my name and telling me to wake up, and stay with them and they kept asking me if I could hear them...in my head I kept answering yes but I then realized my mouth wasn't actually saying what my brain was saying... and apparently to prevent scaring the other patients, the nurses baracaded me with screens and things...again very embarrassing. Oh well I tried!!!