I literally JUST posted a reply to another thread because I had this same issue just weeks ago. I'll share what I wrote.
My LO just went through a 3 week nursing strike and it was beyond frustrating. She was screaming and I was crying.
In my LO's case, she was telling me she wanted to drop a feed and needed more A time. I don't know if that's what is happening in your case, but I found she just didn't want to eat as much. I went from 6 to 5 feeds during the day. So after I dropped the feed, she would still periodically fight me....almost like she had memory and wanted round two just for the heck of it. Basically, she wouldn't eat unless she was calm. Do you find that is what you experience? Does your LO find the tub calming? I took her into the bath with warm water and she NEVER refused to eat. She'd drain both sides. It was very calming for both of us. I'd sometimes have to nurse her in there 3 times a day.....which gradually turned less and less. We're good now, but it took some coaxing.
Have you tried bumping her to a 3.5 hour routine? That would put feeds around 7am, 10:30, 2:00, 5:30...she'll stay awake until 7:00 where she gets a last feed and then bed for the night. I got that suggestion from the BW easy forum.
Best of luck. I hope this helps.