Today I cut my thumb on a dust shield for a brake rotor on a car. It was a fairly deep cut and bled quite a bit. I went to the hospital immediatly and they stitched it up(4 stitches) and then gave me a tetanus shot because I haven't had one since age 6(i'm 20 now). Am I protected from getting tetanus? Or do I have something to worry about? I have an anxiety disorder so I tend to worry about everything a little to much.