Spit up with breastfeeding

I’m 9 days PP and have been breastfeeding with a nipple shield. My son was having a hard time latching and before I left the hospital they gave me a nipple shield to use, it works however I’ve notice the past couple of days he’s been spitting up more. I try to burp him longer and keep him upright after a feed. Did any of you guys have this issue with spit up and breastfeeding? Wondering if it’s normal. Also! He farts a LOT when I feed him. New mommy here and I need any advice or tips :)