Hello all, hopefully you can help us. My sister in law is desperate for help but is getting no useful advice from her health visitors or breastfeeding advisors! New baby is 10 days old and breastfeeding but there are 2 major problems. First she's cluster feeding twice a day and she's only feeding for 5 minutes at a time then going to sleep. Should mum use a dummy? Any advice to help her feed for longer. Second bigger problem is very very jealous toddler (18 months), violent to mum, baby and herself, walking so mum can't really contain her anywhere, sobbing until she's sick and breaking mums heart. Mum thinks the occasional bottle of formula for baby might give her a break from cluster feeding and time for toddler but is scared it might disrupt breast feeding. Any advice?? Thanks everyone.