- memory problems
- confusion
- drowsiness or feeling sluggish
- dizziness
- double vision or blurred vision
- headache
- nausea or vomiting
- sensitivity to light or noise
- balance problems
- slowed reaction to stimuli
- irritability
- sensitivity to light or noise
- difficulty concentrating
- mild headaches
- In some cases, a friend or loved one might have a concussion, and not know it. The following are some of the signs to look out for:
- irritability
- balance issues
- loss of coordination
- problems walking
- seizures
- draining of blood or clear fluid from the ears or nose
- unequal pupil size
- abnormal eye movement
- lasting confusion
- slurred speech
- repeated vomiting
- brief loss of consciousness after the injury
- an inability to wake up (also called a coma)