Spinal fluid (thin, clear liquid) coming out of the ears or nose
Loss of consciousness
Dilated (the black center of the eye is large and does not get smaller in light) or unequal size of pupils
Vision changes (blurred Vision or seeing double, not able to tolerate bright light, loss of eye movement, blindness)
Dizziness
Balance problems
Respiratory failure (difficulty breathing)
Coma (not alert and unable to respond to others) or semi-comatose state
Paralysis, or difficulty moving body parts
Weakness
Poor coordination
Slow pulse
Slow breathing rate, with an increase in blood pressure
Vomiting
Lethargy
Headache
Confusion
Ringing in the ears (tinnitus), or changes in ability to hear
Difficulty with thinking skills (difficulty “thinking straight”, memory problems, poor judgment, poor attention span, a slowed thought processing speed)
Inappropriate emotional responses (irritability, easily frustrated, inappropriate crying or laughing)
Difficulty speaking (slurred speech, difficulty swallowing)
Body numbness or tingling
Loss of bowel control or bladder control