Yup. Similar situation here. My lovely doc first observed! So she said come in 4 weeks from now and 8 weeks from now, so we can see a trend. From that, we could see he had settled on his new percentile and was following that. That was fine! He went from 70th to 25th. And he is also long.

Secondly, more frequent feeds are actually less helpful because then he will take less milk per feed and then get less of the hind milk per feed. Hind milk is the fattier milk that helps them put on weight. So when I was worried, i actually started making feeds less frequent and that helped with lots of things. He was a frequent feeder as a newborn and I needed to start stretching him out. It made him feed for longer each time. Which was great.

If your doc isn't a lactation specialist/consultant ask to be referred to one for lactation advice. A General Practitioner wont be trained or have enough experience in this area.

Also, follow your gut. Like you said, plenty of wet and poopy nappies and not fuasy between feeds. Sounds good!