We had this too. Lots of well-meaning people kept saying to me 'she's useing you as a dummy' (even family and friends who were very pro-BFing said it).
However, i rationalised it this way...what came first, breasts or dummys? I thought to myself, hmm, well since breasts came first, babies must have an inherent need to suck so why would i deny my little girl that? Babies don't use their mother's breast as a dummy, they are just doing what they are supposed to do!
It was hard though so i sympathise. Sometimes i would cry with frustration because it is hard to get used to having this little baby tied to you (i totally relate to peeing with a baby feeding!), but i kept reminding myself that it is only a short time in my life that i will be doing this. It is a gift of time for my child and as other posters say, it is a great time for you to bond with your baby, and rest! you need that rest!
Get lots of healthy but easy to eat food and drink, lots of books and magazines, a laptop and the tv remote and just let yourself settle into the strange, but wonderful time.
However, I agree with all the other posters that you should check out your latch with someone.