If it's the 3 week growth spurt it should be over in a couple of days! When I started pumping at five weeks it was exactly what your talking about now. He statred taking way longer naps in the afternoon/early evening (at that time he was going to bed at midnight) and I pumped while he slept INSTEAD of feeding him. SInce my body had gotten used to feeding him then I was able to get decent amounts of milk in very short amounts of time. Perhaps this will work for you.
It's interesting what you said about the time issue not being mentioned in any book. The only one I read was put out by the American Pediactric Society and they made breastfeeding sound like the greatest most important thing ever! One of my friends said "it's a trick. They have to make you think that otherwise you'll give up because the baby wants to do it 24/7." I had two other friends who said it was harder than giving birth. SO I went into it thinking it was going to be the worst thing ever(dreading it actually) and knew it was ALL i was going to do for a while and because of the way I anticipated it, we've had a very easy time. Not easy like I didn't go thru what everyone goes thru the 1st few months. But I certainly don't think it was wosre than my 57 hrs of induced back labor!!! And the fact that he needed me all the time ended up making me feel good and important. I put off having children for sooo long because I was afraid I was going to mess it up! The fact that he wanted to be with me all the time (and only me) and I could ALWAYS make him stop crying all by myself made me confident about being his mother early!
I don't know what I'd do without my boobs! He's given mere attention getters real purpose! You'll get through this and hopefully you'll have a friend who'll go thru it and you'll be able to coach her thru it. My cousins having twins later this month and I've been coaching and supporting her as much as possible. Good luck and congratulations again!