Actually, you will find no obvious symptoms of Diabetic Retinopathy, especially in the early stages. However, you will find some minor signs that you may get Diabetic Retinopathy in the later, such as blurred vision, vision loss, Fluctuations in Vision and Floaters.
In the early stage of diabetic retinopathy, there is no obvious sign that can tell whether or not you have the condition. But in the later stage, you could suffer Fluctuations in Vision, Floaters, Blurred Vision, Sight Loss. But some symptoms can come and go.