11 week old feeding - help!

[Cr17]

Hi,
Our LO is 11 weeks old, she has always been a great feeder from birth, however last weekend I noticed that she had been playing up abit when feeding, taking longer to feed, burp, loosing interest in feeding she was generally having between 4/5oz every 4 hours during the day with 1 feed during the night.
I read that they can get like this when the teat is too slow, she was on size 1 so I went and brought size 2 and she feeding like a dream again & I thought id cracked it... until this wkend!!!
Most of her feeds she has the first 3oz easy, I wind her (which is generally fine) and then I've been fighting to get the 4th oz in.
My husband suggested that they can get put off the milk if it gets too cold so we have been putting the bottle into boiled water just whilst we are burping to keep it warm but it doesn't really do much.
I have a few times changed her nappy and tried again to get that 4th oz in.
I also continued to feed her without stopping to wind until she wiggled to let me know she needed burping - on this one occasion she had almost 4oz did a good burp and then she carried on and she had 5oz, Although this didn't work the next time round?
She isn't in any pain, she isn't crying or anything like that, if anything she has the bottle in her mouth smiling at me and trying to chat to me, which is adorable ❤ or she just pushed the teat out with her tongue or turn her head side to side.
Have you experienced this? Is this just a phase that will pass? Any tips on getting her back to feeding the way she once was?

If she doesn't want the 4th oz then stop trying to get her to take it. Appetites vary so they will not always take the same amount each feed

At 11 weeks her newborn sucking reflex is or has worn off. Suddenly she’s able to resist eating more than she actually wants!

She’s more aware of the world and more in control. She’s communicating to you clearly that she is full (satiety cues are; lips closed, turning head, tongue pushing the teat out, wriggling her whole body to get you to stop)

When you try to persuade her to drink more you are pressuring her. Over time she may become annoyed or upset by your repeatedly returning the bottle to her mouth.

She knows how much she needs and is excellent at regulating intake if you just let her ❤️

Right now you aren’t respecting her wishes. My MIL did this to my babies and we ended up with a full blown feeding aversion that we’re still was taking on two months later. Don’t make that mistake! Xx

P.S: The first signs for us were “tricky feeds” , MIL would say “I’m not putting up with that nonsense” and try harder. DH would say they were “being stupid” and try distraction and tricks etc before getting annoyed.

Both told me it was rubbish when I said it might be a feeding aversion and both doubled down on the pressure meaning we had babies screaming when placed in a feeding position just two weeks later...

She is giving you cues aka she's had enough.
You don't have the same appetite for each meal each day. Babies are the same! If she was breastfed you wouldn't have a clue how much she was having each feed. If she's happy, not in pain etc and you've changed the teat size (we done this when she was becoming frustrated at feeds). Then I would just take her lead.
I used to have people make comments on how my daughter fed 2 hourly and everyone thought she should be 4 hourly. She never drank as much milk as it said on the formula box either.