3 week old formula Diarrhea?

Brianna

My daughter is 3 1/2 weeks old and on formula. Currently on similac pro advance but I have some pro total comfort and pro sensitive as well as enfamil gentalese that I could try. She has plenty of wet diapers and no fevers. But has had like 3 of these diapers today and been a bit fussy. She did spit up a lot this morning.

Trying to see if It’s formula issue.