Poop problems 😕😔

Alissa

Has anyone’s baby had gray poop? I recently switched her to 100% formula 4-5 days ago. Then 3 days ago her poop was 50/50 regular and gray. Called phone nurse and she said “it’s normal”. Now it’s 100% gray and she’s really straining to poop. It’s thick and pastey.. we have a doc appt 8am tmrw.. anybody else have experience with this ?