I had blood drawn over a week ago and my arm is still in a lot of pain when i put it out straight, this has never happened in all the times i've given ?

Not right.: It sounds like you have a hematoma, blood collection, or venous clot where you gave blood. It is not normal to have that much pain a week after donating blood. You should be seen by a doctor as soon as practical. If your hand is numb, cold, you cannot grip with it, or the pain is so much you cannot sleep, you should be seen by a doctor immediately.