Hello everyone Question about baby's spitting up It starts crying ever…

Hello everyone Question about baby's spitting up It starts crying every now and then when it eats breast milk, has milk intake, and gains weight The baby sucks on the breast as if he is not himself, like they will take away his sippy cup soon But it cries at the breast, especially this starts when I put him upright, until he spits up This is awful sometimes I even shake him upside down just to make him spit up at least Because as soon as he spits up, he calms down And spitting up is sometimes very long and he cries before he spits up Is this normal? Has anyone experienced something similar?