Thanks for the replies and reassurance. Have been doing my pelvic floor exercises religiously every time he feeds and have noticed a slight improvement in my symptoms since last week which is reassuring. Guess it's just going to take time. Because I felt fine in the immediate aftermath of the birth it was a bit of a shock to subsequently develop problems, and I do partly blame the NCT for making me think that a vaginal delivery meant I'd just bounce back! Yorkslass, so glad someone has the same symptoms as me! (Well, I'm not glad you're in pain but you know what I mean.) I'm gradually building up how far I walk each day and hoping that things will just improve with time.
My husband is being really supportive in general, but doesn't do the night time stuff. He's back at work now and does work fairly long days (out of the house between 7am and 7pm usually) so while I'd love some help at night, I don't know how fair it'd be to ask.
Great shout on expressing whilst feeding Phoenix85, that hadn't even occurred to me! I tried it and you're right, I get more milk (even though it's a bit tricky to coordinate). It definitely saves time too so that's what I'll be doing from now on!
Tigger87 and Yorkslass, I agree that the birth weight is maybe misleading. I had IV fluids during labour and Arthur definitely came out looking a little puffy. I wonder if his natural birthweight would have been a little bit lower? He's finally almost fully regained his birth weight so I can be a little less stressed about it all.