Growth spurt???

Morena • She’s my everything ❤️ single mother 👩‍👧

So my baby usually eats between 2-3 oz at every feeding (she’s 12 weeks as of today) and since three days ago she’s been eating 4 oz at every feeding and has had major poop explosions. Is this part of the growth spurt. ( she does a lot to where I thought she had diarrhea)