I just came off a 19 day water fast; I did not floss my teeth the whole time; I just flossed my teeth and a lot of blood showed up from my gums; do I have anything to worry about? I did brush my teeth twice a day.
Bleeding gums are a sign of bacteria buildup. Not eating food will not stop the bacteria in your mouth. I would try a hydrogen peroxide rinse, in addition to your normal flossing / brushing for a few days.