I was so terrified of the needle that I had the shakes and couldn't speak properly and was stuttering. It was so bad I couldn't answer their questions about if I could feel things or not! I know exactly how you feel. Having a needle in your spine is horrible. Having a healthy baby and surviving a huge fear isn't horrible, it's wonderful.
I think to get the best things in our lives we have to cope with the worst things. I am sure you'll cope. You might not like it but when the time comes you'll manage and you'll get that very specil parcel at the end!