It's scary when you have no control over what is basically passing out, especially when you have a lot to live for. (the kids, your hubby, etc..) But I assure you, the hype is the scariest part. Once it's over, you'll be like, "Oh, that wasn't so bad." and laugh about it.
Some people have problems (naseau, mood swings,headaches, increase or decrease in temp) but you have dealt with anesthesia from having your c-sec.. it's really no different. I personally didn't have any side effects, but if you do, it's nothing you can't handle.