breastfeeding newborn

Mom • My name is Raschel. I`m married and have a wonderful 4 year old son and a beautiful rainbow baby girl born nov 2016.
My baby is 5 days old and is breastfeeding. The first couple days she would latch for 20 minutes each time every 3 hrs or so. Now she's only latching for maybe 8-10 minutes each side every hr! My nipples feel like they are going to fall off! If this a normal feeding habit?  Thanks for any advice!