Does this poo look normal or food allergy

She is 7 weeks old. No skin problems but really gassy, sometimes a snotty nose and can get fussy but does sleep at night just fine 95% of the time. My sister stated that it looked food allergy like to her. It’s normally a bit thicker and yellow. Just Today it got more green.

She is exclusively breastfed. We just started her on Prevacid tablets 3 days ago which have made her poop more, runnier and greener. Before she was pooping every 2-3 days and it was thicker

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