Lack of concentration, failing of memory or memory loss, remaining in a confused state of mind are all signs of the disease. Along with these, the person may experience sleep disturbances or disorders. Since the brain does not get sufficient energy in the form of glucose, the functioning of the brain deteriorates causing memory loss, lack of concentration, confusion, etc. Sleep disturbances or disorders have been associated with the rapid changes in glucose levels during sleep.

The vision of a diabetic person is affected by the disease. Mostly, the person experiences blurred vision. Due to some complications caused by the sugar level in the blood, water is attracted to the lens of the eyes which creates blurred vision in a diabetic person.

Cuts and sores may take an unusually long time to heal when diabetes occurs. A small cut may even take the form of a big sore in a diabetic person. Poor blood circulation and a low immunity in diabetics are responsible for the slow healing of cuts and sores.

Pain and cramps in any body part, without any particular reason or cause, may occur. Tingling sensation or numbness specially in hands or legs is also very common. Pain in legs is almost always present in diabetes. Poor blood circulation or improper blood circulation may lead to pain, cramp or numbness in the legs. Low potassium in the body, due to loss of it during frequent urination, may also cause leg pain and cramps.

Feelings of tiredness, weakness, drowsiness may all be signs of diabetes. Fatigue is a constant factor in the disease and even after taking complete rest and getting the needed hours of sleep, one may not feel sufficiently recharged. Lack of energy and constant feeling of tiredness accompanies type 2 diabetes patients continuously. Insulin deficiency does not process sufficient glucose to the body and brain. Thus, a diabetic patient’s brain and body are starved of energy which leads to the feeling of weakness and tiredness.

Sudden and unexplained weight loss points towards the disease. If no conscious effort of weight reduction is being made or if there’s no significant reason for the weight loss, then it may be a warning sign of the disease. Diabetic people are often unable to extract and process the calories from the food they consume. Hence, even after sufficient or more than required intake of food, they keep losing weight. Apart from that, the body also loses the weight of water that the body contains. At the same time, when the body does not find sugar to burn as energy, it starts burning fat and muscle for energy, resulting in weight loss.

Unquenchable thirst accompanies type 2 diabetes. Continuous thirst along with dry mouth and dry throat hint towards the occurrence of the disease. Since a person tends to urinate frequently, the body becomes dehydrated and expresses its need of additional fluid intake through dry mouth and continuous thirst.

The onset of diabetes increases the appetite of a person. The affected person may feel hungrier than usual and more frequently than normal. The food intake of a person also increases with the disease as the intensity of hunger is more, which makes a person consume more food than normal. Sometimes, there may the person may even feel sudden bouts of extreme hunger. Increased hunger in a diabetic person is a result of the irregular sugar levels in the body due to insufficient production of insulin or insulin resistance by the cells. The sudden hunger attacks may occur when the sugar level in the body drops too low and the body craves satiation.

Frequent urination is one of the strongest and most noticeable symptoms of type 2 diabetes. A diabetic person may even have to visit the toilet every hour. Though, the frequency of urination does vary from person to person. The sugar in the blood stream is responsible for pulling out fluid from the tissues and creating excess fluid load on the kidneys. This fluid load then leads to creation of excess urine that results in the need for frequent urination.