It's reassuring to find this thread and see that I'm not the only one!!
Had a 'normal' vaginal delivery with DS1 (still horrible, IMO) but ended up with a 3a tear since he decided to emerge with an arm over his head like Superman.
We did all the stuff you're meant to do immediately post-birth - skin to skin, attempt to breastfeed, gaze into eyes - but to be honest I was knackered and still in a fair bit of pain since midwives kept coming in to inspect my tear. I was certainly interested in the little guy, but was quite happy to be carted off to surgery - no qualms at all. In fact I asked the midwives "Who's going to keep an eye on..." and they said "Oh, your baby will be FINE with us, don't worry." I then had to tell them that I was actually worried about my handbag - had just assumed baby would be looked after!! They looked at me a bit funny 
Anyway, 7 months on and I haven't felt a rush of love at all, but have been getting gradually more and more interested in him as he develops into this quite fun little person that I can play and interact with. I did find it quite hard work until about 6 weeks, then he smiled at me. Somehow it really helped to receive a signal that there was a little person in there, not just a screaming bundle of needs! Put it this way: I would be distraught if someone stole him from me, ergo I must love him a bit :) I never mentioned my worries to the health visitors or midwives by the way, because I was worried they'd over-react (as they do). I did talk to my husband and family about it in tedious detail though, which was probably a good idea in terms of not bottling it all up.
I'm expecting #2 next July, so we'll see if it happens the same way again! TBH I'm not too worried about whether it does or doesn't. My son seems like a happy healthy little boy, so presumably he hasn't noticed that I have strayed from the motherhood guidebook! Good luck with your new little one and DON'T WORRY - every day you get more used to this new life and more able to deal with it (even if it doesn't feel like that at the time)!!