Confusion

• Most people with diabetes usually display a certain level of confusion when their blood sugar drops too low.
  
  

Paleness and Sweating

• Many times this confusion is accompanied by sweating. To the naked eye, this particular symptom would present itself for no apparent reason. This will usually come with a change in complexion, causing one to appear more pale than normal.
  
  

Headache

• Sometimes, a person will suffer from a headache prior to a diabetic seizure. It will usually be more moderate-to-severe in intensity.
  
  

Lack of Coordination

• Another common symptom of very low blood sugar is a person's lack of coordination. The individual will suddenly display unusually awkward movement.
  
  

Numbness

• On occasion, a person with diabetes who is suffering from very low blood sugar will complain of a loss of feeling in the mouth and tongue.
  
  

Loss of Consciousness

• Some people will actually pass out prior to a diabetic seizure caused by low blood sugar, but they will usually have displayed one or more other symptoms before this happens.
  
  

Other Symptoms

• Some people exhibit a number of other common symptoms prior to a diabetic seizure, including dizziness, lightheadedness, trembling, shaking, rapid heartbeat and some weakness. These are all symptoms of severely blood sugar.