Sour Shake Causes Illness - McDonald's, Hamburg Hamburg

7a Möllner Landstraße, Hamburg, 22111 Hamburg, Germany

At around 3 pm I was in McDonald with my daughter and ordered a milkshake vanilla Bon is still there the milkshake tasted sour after I asked why it tastes sour, the employee said that some type of yogurt was probably in it and didn't have time to clean the machine, so the yogurt taste is still I was at home had I immediately had a stomach ache around 5 pm I have diarrhea without end only water that comes out
I MEAN THAT THE SHAKE WAS NO LONGER GOOD AND THEREFORE THE SHAKE TASTED SOUR | Symptoms: Diarrhea, Stomach Pain