yellow/green mucousy poo

Hello everyone!

My 6 month old has recently started having slimy mucousy diapers. It’s hard to tell whether this is mucousy or diaherra. Sometimes they are the normal yellow a mustard colour and other days they have a green tinge. She is exclusively breastfed but we did just start solids last week. Does anyone have any idea what could be causing this? I do notice I have a heavy key down and I may have a slight oversupply so I’m not sure if that has anything to do with it. She has no tie her symtoms and is happy otherwise. We are also drooling a ton and teething.Any advice is greatly appreciated!