If you eat too many sweets and don't wash your teeth...
If you feel pain and swelling in a joint...
If you eat food out-of-date...
If you feel pain in your heart...
If you hurt your eyes...
If you have red spots and high temperature...
If you go late to bed...
If you cough, sneeze, have a runny nose, have temperature...
If you eat unhealthy food and do no exercise...
If you touch, eat or breath something that makes a reaction to your body...
If you suffer hypergucemya in your blood tests...