My son is 17. He recently had a stage two concussion from playing hockey. That was 2 months ago. Recently he is complaining about waking up and not being able to move for a minute. Although he doesnt complain about a crushing feeling on his body, he does feel like someone is pushing on head. He started having mild headaches again this week. He is a migraine sufferer. He is an asthmatic and takes asthma and allergy medicine. When he was a toddler, he suffered from night terrors but outgrew them by age 5.

Is there any connection between sleep disorders and concussions, or is it just a coincidence that this occurred following the concussion?