I got the flu shot in my right arm and it feels sour there was no blood when she did the shot what if it hit a nurve and my arm feels numb I'm anxious?

No need to worry. You can't get superficial nerve damage from a flu shot. Please get your anxiety treated so you stop tormenting yourself with " what if'" scenarios. See a psychologist who specials in cognitive therapy. Also see your family doc for a full physical. Best wishes.