Hi, I donated blood last week, Monday, on my school s campus. A day after doing so my forearm was swollen. The day afterwards swelling had lessened, but I discovered a large bruised area on the bottom side of my forearm. This area ran down most of the side of my forearm and was purple and red (much like how a bruise would look). The bruising is still currently present, but the swelling has gone down a bit. There is now bruising close to the needle entry site, and my forearm has gotten increasingly sore, and it is painful for me to fully extend my arm. Should I worry about this, or is this somewhat normal and should I wait it out? Thanks, James