Consistently high blood glucose and high blood pressure can cause serious damage to your blood vessels, which are very important in the eyes as they supply blood to the light-sensitive retina.

But those with diabetes tend to need to use the loo a lot more, as the body doesn’t reabsorb glucose as much as it should.

The need to use the loo more often will make you thirstier, as the body retains less fluid.

These two symptoms essentially work in tandem - the more you need to urinate, the more your body will alert you to a lack of fluids, meaning you become thirsty much quicker.

The lack of retained water can also give you a dry mouth, which will make you feel thirstier too.

The body converts the food you consume into glucose to provide energy - but enough insulin is required for this to take place