Hello! Welcome and thank you for asking on HCM! I would like to explain that it is normal for up to a month to feel this way after a head concussion, because of a temporary brain dysfunction. But I recommend to closely monitor her and avoid possible repeated head trauma, which can be devastating in this period ( the second impact syndrome). A good dehydration and a lot of rest is necessary for her during these days. If you notice that her symptoms (confusion, sleepiness, headache, dizziness, slurred speach) are worsening in stead of getting better, or other symptoms like limb numbness occur, I recommend bringing her to ER for a physical examination and a brain CT scan to exclude possible delayed intracranial hemorrhage, which can occur even months after a head trauma. Hope to have been of help! Best wishes, Dr. Aida