I hate when someone who barely watches your baby thinks they know more about them than you do.. I…

I hate when someone who barely watches your baby thinks they know more about them than you do.. I know my baby and I know his cries. He isn't keeping his milk down, he keeps spitting it up tonight. Usually we only have that problem when he sucks a bottle down super fast or doesn't get burped about halfway through eating. Well I always slow him down and make sure he burps,and when he's already burped several times and spit up twice, and I have been patting his back for 45 min, believe me it's not a burp cry so when I tell you that don't keep on and try to act like I don't know what I'm talking about. Just stfu and let me be mommy. I feel bad my baby's belly must be a little upset though because I'm not sure what else it would be, he has already had his gas drops.