My LO is 2 weeks old. Week one he was burping like a champ and I thought we had a system. Week 2 came around and suddenly he won't burp half the time and he spits up a ton. I keep him upright for 10 minutes at least after every feeding, try the shoulder burp and sitting/wiggling burp... tried gently working bubbles up with my fingertips and patting his back... I'm out of ideas and getting both worried and a little irritated at all the laundry I have to do. (He spits up even if he does burp, though usually less than when he doesn't). The doctor didn't seem too concerned because he's still peeing and pooping plenty but idk. Any help would be greatly appreciated