Seedy mucusy bm

My daughter is 7 weeks old. The first 5 weeks she was exclusively breast fed the last 2 weeks we have slowly added formula into her diet due to me not producing enough milk. She now has been having green/brown runny mucusy seedy poop. Frequently blow outs. She’ll go 2-3 days without pooping then she’ll have 6-7 dirty diapers over a 24 hr period. They also smell HORRIBLE compared to what i read about baby poop not smelling bad

Anyone have a baby with similar bms and are they “normal”?