Interesting points. Anna, I thought about what you said about women not designed for bf-ing and a heavy workload.
But somehow I wouldn't single out bf-ing per se out of the great number of things as contributing to my rather treadworn being. I am worn out because I have a heavy workload, fullstop. I would not give the fact that I am continuing to bf any greater or less contributory significance as say, my school run - which is much worse BTW.
yes, bf-ing does interrupt my sleep, up to 3 times an hour. I have had 2 of the world's worst sleepers as children, so I understand what you mean. But even with all that disruption, I am fine in the morning, really. I am used to it. Bf-ing is incidental. It is just one of the ways I used to get dd/ds back to sleep.
I agree dh has to help out - as much in getting ds back to sleep as in doing the school run sometimes or bathing the children or taking time off if they are ill.
I never thought to ask for special consideration because of bf-ing.
I guess what I am reacting to is somehow the idea that bf-ing is tiring for the mother - it plays into the myth that bf-ing is somehow difficult and martyr-like. If I was not able to cope, I would think about simplifying my life rather than drop bf-ing, which is for a relatively short time anyway, in the grand scheme of things.
BTW, Anna, well done on bf-ing your 3 year old! For some reason, once I weaned dd at 18 months, she started sleeping through and her sleep became much more robust. Hoping ds will be the same ...