Strange poops?

My 10 month old seems to have an upset stomach. She’s had 4 bowel movements in two hours. That look like the picture. She usually only has 1 or two a day. Today she’s had 6 with these 4 back to back.

It’s Very thin, kind of runny or watery, small amounts and green. She is teething.

Anyone have experience with this and know why? Something I ate ( I’m breastfeeding) teething? She did try a new kind of baby food today. And she has a milk protein allergy.

Any insights ? TIA