How old is your baby ? 45-60 mins is too long for a feeding. It's too tired for both baby and mum. U have to check whether your baby is really sucking, sometimes they just enjoy the feeling of being hold and their month are occupied.
I will not feed more than half an hour. If the baby don't need feeding for at least 2 hours. They have enough in the last meal. The most inportant thing is he has enough wet diapers in a day.
Pls visit 母乳餵哺討論區 , there are many helpful experts there. Workhard ! Breastfeeding is hard but it really worth for the baby's health.