No weight gain in 3 months

Stephanie

My girl just had her 15 month checkup and weighs exactly what she did at her one year, however she’s grown 2 inches!

Is it normal for her weight to stay the same? She did start walking almost exactly on her birthday so I figured her weight gain would slow down but not stop entirely. Doc didn’t seem concerned but I’m just being an anxious FTM and wondering if it’s a sign she may not be eating enough.