DS takes an hour to feed, I mentioned it to the midwife and she said to go up a teat so I've been using medium flow with him. He started medium flows about 3 weeks and at first it was great he was feeding really quickly however now he's taking over an hour again. He stops every 5ml for a break and he sucks the teat so slowly and sometimes falls asleep but that's not usually an issue. Any advice of what to do?