I've had a c-section and was very scared and shaky when I got it as well, but it didn't hurt at all and was all over so quickly. I thought I'd be terrified at the numb feeling but was ok with it....it took a little while the next day before I was comfortable being on my feet again...in fact that was the most uncomfortable part of the whole thing....just being shaky on your feet afterwards....but everyone is different.

I had gone through 10hrs of labour prior to a c-section decision and had already had some gas which I think helped relax me a little prior to putting it in, so if you can ask for some, try that perhaps.