Why is my stools float and have i digested food?

Malabsorption: Floating stools suggest a problem digesting fat (malabsorption). Assuming that you meant "undigested food" rather than "digested food," that would also suggest a malabsorption problem. Problems causing this can include abnormal bacterial balance in the gut, or liver or small intestine problems. Primary care physician can evaluate & initiate a workup, if needed.