Help...

Anyone else’s LO so used to formula that when they are given breast milk they get diarrhea cause their body isn’t used to the breast milk?

My LO doesn’t like the boob much so I can’t really feed him from it and he gets to angry at it.

And I don’t make enough breast milk usually an 1oz a day and I’ve tried everything to up my supply but it just doesn’t work. So he gets 1oz if breast milk a day which just ends up giving him diarrhea right after 😥 idk what to do,I don’t wanna stop giving him breast milk cause it’s good for him. But at the same time I don’t want him to keep getting an upset stomach 😥