2 month check up. Doctor annoyed me!

Courtney • 👶🏼💙 10/29/16👶🏼💙 6/27/20
My son is almost 11 weeks old. He was born 5 lbs 13 oz and now weighs 11 lb 6 oz. I feed him 4 oz every two hours during the day and he only wakes once in the night to eat again. Doctor said I'm over feeding. How?!? If anything I thought I should be feeding more by now. His percentile for weight is 17% so it's still on the low side.