Persistent post-concussive symptoms include: 
Headaches.
Dizziness.
Fatigue.
Irritability.
Anxiety.
Trouble falling asleep or sleeping too much.
Loss of concentration and memory.
Ringing in the ears.
Blurry vision.
Noise and light sensitivity.
Rarely, decreases in taste and smell.
 Headaches after a concussion most often feel like tension-type headaches. These may be related to a neck injury that happened at the same time as the head injury. Or the headaches may feel like migraines.