Oh poor you!!!! I always think when they're feeding hourly they must be building up milk supply, so it shouldn't last too long. 12 weeks is such a massive milestone. Just wait until next week, you'll suddenly remark how DD doesn't fit into any of her clothes, is suddenly more "awake", can do all these new things. How exciting!

In the meantime, rest, rest, rest. Stuff the housework and stay in your pj's. Also make sure you eat and drink lots, because making all that milk requires a lot of fuel.

Babies are hard work, hey? But they do settle down and become more predicatable from here on...

HTH. GL with it!