Feeding Problem

Jason

My 3month old has been drinking breast milk from a bottle fine 4-6oz is a 15-30min session but the last week he has been taking FOREVER and has not been drinking as much. Yesterday and today he would feed for like 40min and only have 2oz. He didn’t have a wet diaper after sleeping 6hours. Any insight into what’s going on with him. Seems like he’s dehydrated but still what’s up?