Can the doctors pocket too much blood?

I got my blood taken for the first time yesterday, it was checking my liver kidney and thyroid. The nurse missed and hit a nerve on one of my arms.So she have to take blood from my other arm That same day I got hit within the head during a basketball game. So this morning I woke up to a migraine and a little motion sickness. What could be the create? The blood? The hit on the head? or both?
Answers:
They didn't take that much blood.

For you to touch the effects you typically have to lose at least a full unit of blood or more.
When you donate blood you give a pint (a unit) of blood. Big difference from the usually amount taken for lab work. So them missing and having to retry did not hurt your blood supply at adjectives.

I would say your issues are from the head injuries...
The tubes of blood they take are about a teaspoon respectively. Most people can donate about 2 cups of blood and feel a short time ago fine, unless they are severely anemic or have other medical problems.

The bump on the head might be causing your headache, or you might a short time ago have gotten the migraine. Nausea can be associated with migraines.

The blood draw had zilch to do with the headache.

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