Breastfeeding Question!

Mommies, Ilang minutes ang latching ni baby sa inyo every feeding? And Ilang hours ang pagitan or interval? My LO used to feed 10-30 mins before, every hour or two interval when she was newborn until 1 month (Overfed sya). For the past days, I noticed na she’s only latching for 3 to 7 mins, interval before next feed is 2-3 hrs. May check up and vaccine sya tomorrow so I can ask her pedia. I just wanted to know if sudden changes such as this are normal for other mommies? TIA. #firstbaby #1stimemom