Cakes, if you mean constipation I had the opposite problem after my CS. Some friends came to visit on Day 2 (still in hospital) and I was in agony with what turned out to be a cross between wind and incipient diarrhoea - luckily not until after they left! 
Loopy, you are having your PIL staying for 6 weeks?
[horror] That would have killed me. Even if they were supposed to be being helpful. Before DD1 was born I had a big fight with DH because I didn't want his mum coming to stay even for a few days - I get on with her very well as a general rule, but I didn't want anything that might even possibly stress me when I was adjusting to a new baby and getting bf established. Luckily for me PIL booked themselves a 6-week retirement trip to NZ, 8 months in advance, a week before we found out I was pg with DD2. Score! They didn't get back until M was 4 weeks old. Anyway, that's not helpful. But seriously, is there any way you can get rid of them tactfully? 6 weeks is a really long time. Maybe you could just retire to bed every afternoon with the baby so you don't see so much of them?
Dream, yay for a better night! Glad DD seems to be on the mend.
Poor little E with his sore teeth! Does it not hurt when he chomps on your finger? M can make me squeal and yank my fingers out of her mouth and she hasn't got any teeth, just hard little gums.
Fluffy, hope the fennel tea helps! Isn't it a galactagogue too? (Is that the right word? I seem to remember Purple using it. The one that means something that increases your milk supply)
Scream, that sounds horrid. Hope little A is back with you now. 
Can I just say, my blueberry-lemon-coconut tray bake is lush? if I don't win a prize with it I will be v cross Low-carb diet out the window again.