8 week old eating less

Hanu ♥️ • March 2019 🐞 June 2022 🦋

My daughter is 8.6w today and these couple of days she’s sleeping more and eating less. She used to have around 800ml daily and now it’s barely reaching 700ml. She feeds around 2oz per feed every 2hrs. She used to have 3-4oz. She poops once a day and has wet nappies regularly. I know she might going through a growth spurt but I’m kinda worried. Is anyone going through something similar? Should I make an appointment with her doctor? Thanks 🙏🏻