Re: 10.5 month old not gaining weight for 4 months
All that motion burns a ton of calories! Both my girls dropped from the top of the charts (like 95-99th percentiles) down to around the 75-85th percentile zone as they became increasingly active.
Is your baby being measured on the new WHO charts for breastfed babies, or the old CDC charts, compiled using data from predominantly formula-fed babies? The growth patterns of breastfed and formula-fed infants are quite different; breastfed babies tend to slow their rate of weight gain as they enter the second half of the first year, whereas formula-fed babies tend to gain faster in their second six months. So the curves look very different. Measure a breastfed baby by the CDC charts, and she will appear to be gaining "too fast" in her first 6 months (approximately) and "too slow" in her second 6 months (again, approximately).
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"