i dont see why your arm is weak :P
blood tests are easy, donating blood will make your whole body feel weak, its fun. holding a bag of your own warm blood
Odd that your arm went weak but yeah it's not as bad as you pictured it huh? ^^ I had to have something like that done when I was 10-11 and the nerse said I did better then most adults. XDD
I still have a little squeamishness about them, but yeah, just a prick ^^
blood tests are easy, donating blood will make your whole body feel weak, its fun. holding a bag of your own warm blood