What are the usual signs that a person has diabetes?

I went to my GP yesterday as a follow-up appointment after being diagnosed with cellulitis in the foot. A number of other concerns were raised about my circulation and my heart which were showing some bad results after checking blood pressure. They said I am also very low on oxygen due to shortness of breath. I am going for some tests on Monday and Tuesday to find out whether I do have diabetes and anything else but what are the usual signs that a person has diabetes?

Diabetes Type 1: Symtoms of type 2

In type 1, the pancreas stop producing insulin, due to autuimmune response or possibly viral attack on pancreas. In absence of insulin, body cells does not get glucose for producing ATP (Adenosin Triphosphate) units which results into primary symptom in the form of nausea and vomiting. In latter stage which leads to ketoacidosis in which body starts breaking down muscle tissue and fat for energy, there is consequently fast weight loss. Dehydration is also usually observed due to electrolyte disturbance. In advance stages even coma and death, are being witnessed.

Diabetes Type 2:

* Increased fatigue : Due to inefficiency of cell to metabolise glucose, reserve fat of body is metabolised to gain energy. When fat is broken down in the body, it uses more energy as compared to glucose, hence body goes in negative calorie effect, which results in fatigue.
* Polydipsia : As the concentration of glucose increases in the blood, brain receives signal for diluting it and in its counteraction we feel thirsty.
* Polyuria: Increase in urine production is the result seen when excess of glucose is present in body. Body tries to get rid of the extra sugar in the blood by excreting it through the urine. This can also lead to dehydration because excreting the sugar which carries a large amount of water out of the body along with it.
* Polyphegia : The hormone insulin is also responsible for stimulating hunger. In order to cope up with high sugar levels in blood, body produces insulin which leads to increased hunger.
* Weight flactuation : Factors like loss of water (polyuria), glucosuria , metabolism of body fat and protein may lead to loss of weight. Few cases may show weight gain due to increased appetite.
* Blurry vision : Hyperosmolar hyperglycemia nonketotic syndrome is the condition when body fluid is pulled out of tissues including lenses of eye, which affects the ability of lenses to focus resulting in blurry vision.
* Irritability : It is one of the sign of high blood sugar because of the inefficient supply of glucose to brain and other body organs, which makes us feel tired and uneasy.
* Infections : Certain signals from the body is given whenever there is fluctuation of blood sugar (due to suppression of immune system) by frequent infections of fungal or bacterial like skin infection or UTI (urinary tract infection).
* Poor wound healing : High blood sugar resists the flourishing of WBC, (white blood cell) which are responsible for body immune system. When these cells do not function accordingly, wound healing is not at good pace. Secondly, long standing diabetes leads to thickening of blood vessels which may affect proper circulation of blood in different body parts.

Lets hope you do not have diabetes.
Good luck my friend.Take care

Thirsty more than usual, having to urinate more than usual or get up at night, tired especially after eating a lot of sugar or carbs, gaining weight around the abdomen or a trunk like stomach if you are older, some people have facial spasms or changed in vision.

Frequent urination
Excessive thirst
Extreme hunger
Unusual weight loss
Increased fatigue
Irritability
Blurry vision

Also tingling and circulation problems in your extremities (which can give you cuts that don't heal or skin problems on hands/feet). There are others but those are some of the most common ones that show up.

drinking excessive water
eating a lot / extreme hunger
loss of a lot of weight in a little amount of time
blurred vision
increased fatigue
irritability