screaming and pulling off during a feed

[incomplete]

bubs is 8 weeks on Wednesday

we've had issues with him choking and coughing and spluttering during a feed (and I have previously hand expressed before he latches on and done block feeding), but the last two days he's been crying a lot during a feed. Pretty much straight away he pulls off cries loudly, tries to latch on again, feeds for a few seconds, and then cries again and the process repeats. He also thrashes his legs and arms a bit too. Milk even came out of his nose on the last feed. Feeding looks really painful for him and it's making me upset, I don't know what to do or what the problem is.

He does spit up quite often after a feed, and I'm wondering whether this crying is from reflux or could it be the fast let down (but if so, why hasn't the screaming happened sooner than now??)

I'm worried he's not getting enough milk now because he's not feeding as long as he normally does, and I'm not trying to make him feed longer due to him crying so much and seemingly in pain.

My husband keeps saying give him formula, which just p*sses me off and upsets me more (makes me feel like by breastfeeding I'm the one to blame for making him cry and be in pain). I've said if it's a reflux issue then it doesn't matter whether it's breast or bottle. But should I relent? Or do I just keep trying to feed until we can get to a doctor tomorrow? I have even thought of going to the childrens hospital tonight.

I also wondered if it was something I ate, I had a heap of cheese on new years. but then I thought if that was the case, would this have gone on for two days now?