DS is 9.5MO now and 8.56kg. He has put on 260g in two months. Granted, he was off his food for a bit with teething and he is incredibly active (walking already and literally will not stop moving during his A times) but he puts away what I consider to be quite a bit of solids in his 3 meals per day (he'll scoff an entire banana in a few minutes and then stand in his chair and dive at my food on the table) as well as 4 BFs per day.
The health nurse seemed a little concerned (I did go and weigh him as I thought he may not be growing much since I haven't put him in bigger clothes for 4 months) and he's certainly not following the curve weight-wise, though his head circumference and length are still increasing as expected. She asked if he was having snacks as well as 3 meals and 4 BFs. Did anyone have their baby on this much food when they were this young?
I'm not particularly worried, but don't really want to tell DH this as he'll say its time for formula (again). I will tell him and we'll have another lively discussion, but it'd be nice to know we're not the only ones whose kid is not gaining due to activity level.