Very sorry to only just reply. My Internet has been playing silly buggers again and I couldn't get on. This has been since tuesday but it's definitely getting worse. It coincided with her getting another reflux attack which we are treating but is still affecting her.
She doesn't sleep a lot so it's sometimes hard to gauge her behaviour beyond tired.
When she refuses she is usually tired and fussing for sleep- fine I thought, she no longer wants to feed to sleep. I always offer a feed as soon as she wakes (plus if she hasn't slept, plus if she's fussing) so it's rare for her to go 3hrs without feeding. Thinking about it she more usually feeds every 2hrs in the day but happily goes to 4hrs or 8 at night. I'm definitely 'when in doubt, whip it out.'
However, now (yesterday, once) she is also refusing when she wakes up and also refused yesterday when I knew she was hungry (again yesterday, once) though she was also over tired then. However later that day she was feeding happily until another acid attack.
She fussed, turns her head away, whines and crys, getting angry and shouting if I persist. She absolutely gets cross.
I think she's still gaining weight, I haven't noticed less nappy activity, she is still a smiley, happy non sleeping baby!