Slimy green poop


My daughter is 6 weeks old and today she started having slimy green poop. I breastfeed and also formula. I use the enfamil gentlease. But today all she wants to do is be on the boob and sleep with me. If she’s not then she’s crying or being fuzzy. She is not taking the bottle at all. Idk if there’s something wrong with her stomach because of her poop or if just a growth spurt?