Re: Spitting up blood
This does sound somewhat familiar. As the PP said, it only takes a small amount of milk to tint your milk a really shocking color. I once pumped some that was pepto bismal pink, and after a day in the fridge, the blood settled to the bottom of the bottle and there was probably half an ounce of it.
As the PP said, if your baby's thrown-up meal was only pink, tinged with blood, that's a very different story from it being bright red and full of blood.
I think the LC's advice is good advice. And please don't worry that the trouble you're having with the flat-nipple, cracked side will last forever. As your baby grows, his mouth and tongue will grow and he'll be able to latch on more deeply. When that happens, the cracking should go away. Also, the longer you nurse, the more likely it is that the flat nipple won't be so flat any more. Mine used to be flattish, and now they are erect all the time.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"