Well, I'm hoping that the terror will subside over the 9 months.
I think part of it is that we have such cosseted lives, that many people have never had severe pain (I have never been in pain in my life, not really), and so childbirth is like a one-off event. In the old days people suffered more, and maybe accepted pain more..
Also I think it's a lot to do with how your mum has talked to you about childbirth. my mum only had 1 child, with epidural, and said it was great but she definitely wouldn't have wanted to do it without. So I kind of have the same idea that my birth will be like that.. My friend whose mum had 4 with no pain relief and always said it wasn't that bad is much more confident than me !(she's not preg yet, though!)
I agree that the fear of pain is definitely worse than the pain itself, I'm just worried about getting trauma or flashbacks, taking ages to get over it mentally (I'm a very highly strung, hysterical sort of person). On the other hand, you just can't tell; I might be able to cope with it quite well and have hidden reserves of strength!
I suppose on the one hand it's a natural process, but then so is dying and the progression of many agonisingly painful diseases, so I'm not convinced by its naturalness being a reason not to have pain relief..
Sorry about the rant! That's what you get with panicky 1st timers! V useful reading all your comments though, thanks..