DD is 7 weeks old today & only goes 2-3 hours between feeds although she does manage a 4 hour gap between her last feed before bed and the first night time feed. It feels incredibly tying having to feed her so often and to top it off the health visitor implied she should be going 3-4 hours between feeds now. Is this pattern normal? I've tried pushing her to go a little longer between feeds but only a few minutes as she becomes really upset.