Spitting up is normal. Not making a burp sound is normal. Whether baby spits up milk or curdled milk is immaterial - it does not denote digested or undigested. Just hold baby upright for three to five minutes and when you place baby down try maintaining a slight incline for a little while if possible.

continue to hold baby upright fr about ten minutes after feed.

ya its normal . don't worry

it is normal.it happens coz of indigestion or sometime milk overflow/fast feed.use 1st 2 fingers on nip to control flow.