If you don't eat properly then you may feel a little washed out which is quickly resolved if you eat. Your blood sugar does not drop to a dangerous level that could make you pass out. Only someone who is diabetic will do that.
NHS description. is as follows.
Symptoms of hypoglycaemia
The symptoms of hypoglycaemia usually begin when a person's blood glucose level drops to somewhere between 3 and 4 millimoles (mmol) per litre.
If you have diabetes, particularly if it's treated with insulin, you may be advised to use a small device called a blood glucose meter to check your blood glucose levels regularly.
The symptoms may vary from person to person and it is important to be aware of the early warning signs so that you can treat them.
Read more about how hypoglycaemia is treated.
Symptoms and signs of hypoglycaemia can include:
feeling hungry
sweating
dizziness
tiredness (fatigue)
blurred vision
trembling or shakiness
going pale
fast pulse or palpitations
tingling lips
irritability
difficulty concentrating
confusion
disorderly or irrational behaviour, which may be mistaken for drunkenness
If hypoglycaemia isn't treated promptly and blood glucose levels drop low enough, you may become drowsy or even lose consciousness.
Most people with insulin-treated diabetes notice that symptoms of hypoglycaemia change and become less obvious the longer they live with the condition.
Some people experience greatly reduced warning symptoms, putting them at significant risk of having severe episodes where they are dependent on others for help. It is important that people who develop this problem let their diabetes team know as their treatment may need to be changed to try to reduce this risk.
Hypoglycaemia while sleeping
Having a hypo while you're asleep is known as nocturnal hypoglycaemia. It is more common in people who treat diabetes with insulin.
Although some people find their sleep is disturbed when they experience nocturnal hypoglycaemia, you will often only notice the symptoms when you wake up in the morning. The symptoms can include:
headache, which is often likened to having a hangover
feeling unusually tired in the morning
damp sheets or clothing from sweating
If dextrose fizz it got nothing to do with you being hypoglycemic.
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