4 month check up...

So she weighs 14 lbs, 8 oz, 26.25" long. Cardiology did not want to see her because they think the lack of eating is unrelated to her heart. Pediatrician said she appears to be perfect, but has no idea why she is refusing to intake what she needs. She doesn't believe its a growth spurt. She has no fever or shows signs of no illness. Basically no one has any idea why she is refusing to eat for the last 3 days. (since midnight she has only taken in 15 oz). We have to watch her the next 2 days or we have to bring her back in. Please keep Zoe in your thoughts, I'm one worried Mama who just wants her baby girl to be ok...