Girls, the baby is spitting up all day immediately after feeding, even…

Girls, the baby is spitting up all day immediately after feeding, even for seconds, and several times before the next feeding. He started literally every 15 minutes asking for the breast. Today two times, right during feeding, milk went out his nose. Once just milk, and in the second time with cottage cheese. Sometimes he eats, jumps and immediately asks again. I hold him upright. Today I only held him upright, from him it spilled milk What could this be ? He usually spits up too, but today there's a lot of it, whatever position I feed him and whatever breast I use.