Hi,

It is really upsetting when your baby reacts like this at a breastfeed. I was wondering, how often does your baby feed in 24 hours now? Has he been weighed lately? How is that going? I think that the great thing is that he feeds really well at other times. Most babies have a very unsettled period in each 24 hours. A time when nothing you do seems to be the right thing. It could be the culmination of the day's stimulation, and often occurs at a time when your resources as a mother are low - you are maybe tired and hungry yourself.
Have you had a look at this article? https://www.bellybelly.com.au/baby/breast-refusal

Warm Regards
Barb