T.W.
You do not feel anything different then the rest of us. Your world changes DRAMATICALLY as well as your relationship. The only thing I have to tell you is, your husband came first which is hard thing to remember. In short, although your new baby requires a ton of work and attention you need to make sure your husbands needs are met also. Make an extra effort to get him his coffee in the morning, no matter how tired you are. Make it a priority to take at least one day a month (preferably once a week) to get out on a date, just you and your husband. Make an extra effort to be intimate. I know this sounds like an impossibility right now but believe me it is critical, not only for your husband but for you. The payoff will be huge and as your child gets older, she will benefit from watching how a healthy relationship works. The best payoff is when she grows up and has learned to marry a great guy like you did.
Good luck, believe it or not it does get easier for a while, until they are teenagers. = )
P.S. One last bit of advice, with my first son, I doted, and did EVERYTHING for him. Now three kids and one on the way later I have learned that I needed to give him opportunities to learn and do things on his own a bit. He is not as independent and confident as my other two. Enjoy.