HV told me that the little sleepy butterfly-sucks at the end of a feed are when the baby is drinking the hindmilk. I found that useful as I had assumed this was just my baby dropping off to sleep or comfort sucking and sometimes un-latched her. So today I let her stay on. The only thing is this prolongs the feed, usually about 10-15 mins to around 30-45 mins! Is this normal for a 3 month old?