Hi! I went to the ped recently and my almost 4 mth old is weighing in at 16 lbs and some change. She is gaining weight so fast! Everyone always comments on how "chunky" or "healthy" she is. Ped asked what I was feeding her and I told her just breastmilk...she told me not to worry about it, keep feeding her on demand...gaining weight fast on bm isn't anything to worry about. I guess I'm hoping that someone out there can share their experiences with a "rolly" ebf baby. If she continues this way, will it be necessary for me to introduce solids at all? Any personal experiences??