There are a lot of people who do not even realize that they have diabetes until they are already diagnosed with this. One of the most common signs is an increase in thirst. People would feel the need to drink all the time. They would also feel the need to eat often. Despite their urges, they would begin to lose weight even if they have not done any changes to their diet.
Some would need to go to the bathroom often and would suffer from urine infections from time to time. Those who get cuts and bruises would take a long time before their wounds would heal. Take note that some of the symptoms would differ depending on the type of Diabetes that is being experienced.