Baby weight

Tracy

so my daugther is already 3 months old.. usually she nap during the day time like 3 times. but now that she start to roll on her tummy and playtime is getting longer than before.. by yesterday she went for her monthly check up at a local clinic.. and she did not gain much weight like before. usually she gain somewhere around 1.5 kg but yesterday she only gain like 370 grams only.. is that normal?