Mamas of cystic fibrosis babies??

Hi, I have a question to mamas who’s babies have cystic fibrosis.

My daughter got a positive on her newborn screen test but had a negative salt test.

However the worry of it being a false negative worries me from time to time.

I know that mucus in stool is one of the major symptoms of CF, my daughter haven’t had a problem with that until recently (she is now almost year old),

Here’s a pic of her recent poo-my question is-does it look mucusy or anything like you child’s poo at this age??

Also what was the first symptom of CF your child had and at what age??

Thank you so much to anyone who takes time to answer!!