Comments from Relatives about my “Thin Kid”

Hi. I just want to open up here: Is it me, or do you also feel bad when your in-laws tell you that your kid is "thin" or becomes thinner? Last time I brought my kid to babysitter while I was working, and she was a bit chubby there. After I resigned from work, I now take care of my kid alone. I felt like they were saying these because they think I don't feed my kid well enough. The truth is, my kid is a picky eater, and she really sometimes doesn't want to eat and finish what I've prepared for. And my kid is more active now than last time and growing taller. I dunno, but I get hurt every time they say like this kind of things.