Who's children weigh 10-11 kg at 6 months old. How much have you gained…

Who's children weigh 10-11 kg at 6 months old. How much have you gained over the past couple of months? At 5 months they were 9800/68 cm, and at 6 months they are 10500.72 cm. (born 4190/56 cm) and the pediatrician says supposedly not gaining enough, we need to introduce solids faster and give everything, like he is not eating enough, but my child is full. We are without breastfeeding for 3-4 hours, we walk around. He just moves a lot now. Strange, I sometimes feel like she doesn't even have kids. So straight up says, let