Is it diarrhea?

Hi. I would like to know if my baby is having diarrhoea. She usually poops every 2 days and would have smelly gas in between. She drinks a mix of breastmilk (70%) and formula (30%). Poop would be mustard yellow and mushy consistency.

I accidentally took an essence with ginseng for 2 days and she started to have very runny poop more than 5 times a day since then. Her poop chanhed colour from mustard yellow to runny green. Once she had close to black poop. Now her poop is yellow/green and still runny. Every time she drinks milk (2hr feeds), she poops. When she releases gas, a bit of poop is also released.

No crankiness, able to feed as usual and not looking dehydrated. But looking like she lost some water weight. Has been having these symptoms of pooping for about 4 to 5 days already.

Should I wait it out or see a DR?