Spitting up 2 week old

My little one is 2 weeks old. She is formula fed and drinks about 2 oz every 2-3 hours. She’s been spitting up her formula at least 1-2 time a day. I’m worried she’s not getting what she needs. She’s in Similac sensitive formula. My other daughter was diagnosed with lactose intolerance when she was 2 weeks old. Could my baby be lactose intolerant too?

Also, her BM’s are very runny and yellow. Is that considered normal for this age? Or could that have something to do with her belly being upset from the formula. She has BM’s very frequently throughout the day.

She sees her pediatrician tomorrow for her 2 week check up. Is this something I should mention?

Any suggestions? Just worried.