Thanks for your query.
is mostly viral in nature and takes few days to settle.
I suggest you to give probiotic
like lactobaccilus for 2 to 3 days.
Give coconut water,butter milk,curd,boiled potato,apple puree,rice porridge.
It is good that your baby is active,paleness could be due to dehydration
Relax ,your baby will be fine in couple of days.