Hello everyone Can anyone tell me if they've encountered watery stools…

Hello everyone Can anyone tell me if they've encountered watery stools in babies aged 11 months? They have constipation and diarrhea. Fermentation is happening but it's normal, could it be an allergy or infection? No fever It's been two weeks and I don't know what's going on Someone says their teeth are bothering them, someone else says I'm not eating properly