How much, is too much coffee?!

How much, is too much coffee?

I drink at a minimum around 5 cups of strong coffee a day. I get really chittery. Am I drinking too much, and how do i stop if i am

I usually drink enough strong coffee each day to launch the space shuttle.
If you pass yourself several times during the day, it's generally an indication that you've had too much.
You've also had too much if everything around you begins to slow and you start to travel backwards in time.

OK... in sincerity...

Coffee is great as a quick boost in the morning but it cannot be a way of life. I made myself hypoglycemic by running on coffee for long periods and skipping meals. Caffeine is a stimulant but contains no nutrition. It is considered a mild amphetamine.
If you skip meals during the day and run on caffeine, your body will compensate by releasing adrenalin into your system. That causes the jittery feeling you are experiencing. It is the same trembling you might feel if suddenly startled or scared and is part of the "flight or flight" response to danger. It's nature's way of giving you a quick boost of energy for survival.
Eventually you will burn out your adrenal glands and pancreas. You might end up with hypoglycemia or panic attacks. Hypoglycemia can turn into diabetes later in life.
The panic attacks are hell.
Panic or Anxiety disorder is the number one mental problem in the USA, surpassing even depression. It is called the curse of the Starbucks generation because it is easily triggered by too much caffeine.

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