Re: Feeling A Little Trapped....
I think the best thing you can do in your situation is communicate, communicate, communicate. When you get up in the morning, tell your husband "Honey, I would really like to do ____ today. I'll nurse DD and you just watch her for half an hour or so. Around what time of day do you think you'll be available?" The more advance warning you give your DH of your needs, the more likely it will be that your needs will get met.
If that doesn't work, get yourself a sling and some nursing shirts. Most errands can be done with baby in tow, and you will feel liberated just by being out of the house, even with your baby in tow!
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!"