Yup. Normal. Infants have a tendency to get day and night mixed up, rearrange eating and nap schedules, and do all sorts of crazy things as their bodies develop and grow. Unfortunately that means you have to also rearrange your schedule a bit. It may take longer than a couple of days to get her back on track. After three kids, I still don't know how anyone can expect to get an infant to conform to an adult's schedule. I gave up after my first and decided to just go with the flow (and lack of sleep). My daughters eventually learned that nighttime is for sleeping and after a year or so, figured out a regular nap schedule.
I agree with the poster who stated, "let sleeping babies lie." There will be a lot less crying, fussing, etc. if you let your baby sleep when she wants to and be awake when she wants to. Interrupting her sleep to conform to your schedule will not help her sleep better or eat better. It will only make her cranky!
Good luck and enjoy your little one!
K.