Baby screams at last feed- help!

Our daughter is 2 1/2 months old. For the last 4-5 weeks she’s been screaming bloody murder for 30-60 minutes while we try to feed her. She’s breastfed but usually won’t nurse at the last feed now. We have to constantly try stuff until she tires herself out or we find whatever perfect set up she wants (like it has to be dada tonight with a bottle and with white noise). We have two other young children and it’s really wearing us down (and keeping us up). It doesn’t seem to be gas related but we’ve tried mylicon drops, probiotics, formula, faster flow bottles, heating it more or less, and several other things. I talked to my pediatrician who said maybe she’s not hungry so I tried putting her down without food even though it seemed outlandish. It was a total fail.

Please send any help or suggestions our way!