Greetings To You Doctor Please Help Me My Child Born

Greetings to you Doctor
please help me my child born on the 7th of July last year, but now is having 7 months full. I was on maternity leave so I breast feed her for 6 months, and started teaching her a bottle feed. so she doesn't want at all. she doesn't want to see that bottle passing by to her, she just want water only even if you can put milk on her cup she doesn't want .started giving her brown porridge with milk, she ate but because of diarrhea I stop give her milk I just give her porridge without milk. the problem is, is not stoping
I am having stress