I agree entirely with Hear, the HV sounds misguided at best. What she says doesn't fit with current NHS online guidance, or any other weaning advice I have heard. I also agree that 2 feeds a day sounds more suited to ff babies, though not even sure it would suit them: they are meant to have 500-600ml of milk a day until a year which would mean taking up to 300ml in one go - that's an awful lot for a wee tummy to take in.
Perhaps the official thing she had photocopied was from a while back, and is more suited to babies who begin weaning pre six months?
My own feeling is that encouraging him to eat and drink more at day might help reduce night feeds if only in that it will give you confidence to keep on rocking and comforting when he wails safe in knowledge that he isn't going to fade away as he's had lots of calories in day. But given the other issues, like spoon refusal and gagging, that obviously has to be a gentle process and not just a random 'starve him of milk and shove other meals down him' thing.
DS back to his usual non settling self tonight, DH currently singing lullabies in the nursery while I make tea. He is also increasingly poorly seeming, and has what I think is a heat or allergic rash. Waiting on call from NHS direct just to check it doesn't sound more serious than that. So obviously hoping he gets better, but actually he seems to have been sleeping better while poorly cos he is so tired. As long as we unblock the nose now and again and keep him fed he has slept really well (for him: 3 wakings a night, food, back down). So hoping that he gets better but keeps up the sleep improvement!
hear your DD sounds brilliant, I love when they get a new skill and are obsessed with it. Hope the walking has worn her out.