Hypo symptoms occur for two reasons:

The body produces chemical messengers (hormones) to attempt to raise the blood glucose level. Adrenaline is the main one and causes most of the symptoms.
The brain is not getting enough glucose to keep working normally. Unfortunately there is no foolproof way of recognising a hypo so when in doubt checking the blood glucose level will tell you what is happening.
Not everyone feels the same when their blood glucose level is low and the symptoms may not always be the same. However most people with diabetes learn to recognise the feelings they have when their blood glucose is too low. Occasionally some people have difficulty knowing because they don’t feel different at all

Answered by Jyothi C , an ibibo Master, at 10:48 AM on December 28, 2008

You can experience some or all of the following symptoms:

Did you know? Hypoglycaemic episodes are categorised as:


- mild - you can manage these episodes alone.
- serious - you'll need help from others, such as a family member or doctor.

Caution

The aim of diabetes treatment is to have as near normal levels of blood sugar as possible.

Deliberately running higher glucose levels should only be done on a doctor's advice.

Answered by Mohd Saqib , an ibibo Master, at 12:33 AM on December 26, 2008

Some of the hypo symptoms are:
a. paleness
b. shaking
c. perspiration
d. feeling weak
e. rapid heartbeat
f. hunger
g. agitation
h. difficulty to concentrate
i. fatigue
j. blurred vision
k. irritability
l. confusion
m. convulsions
n. temporary loss of consciousness
o. coma


Most people do get some warning signs that hypo is happening. But for some, hypo may cause few or none of the milder symptoms before the start of sudden unconsciousness or convulsions, especially if you've had diabetes for years. What this means is that loss of consciousness can occur without warning.

Answered by Deepak , an ibibo Advisor, at 12:32 AM on December 26, 2008