Is this poo colour and texture of a 5-month-old normal? I just change from Enfamil A.R to Nan H.A. The poo frequency is about 2x a day.

The green is pretty normal when you switch to Nan HA. The iron content in the hypoallergenic formula causes that apparently. As for the texture, the creamy and watery consistency is normal too, when you switch to Nan HA.