Hit my head a week ago pretty hard and now when i walk it feels like my brain is bouncing off my skull and ibuprofen 600 only takes the pain away for?

Concussion: You may have a post-concussive/traumatic headache. If the headache is accompanied by other symptoms (difficulty concentrating, irritability) then you might have post-concussion syndrome. Improvement in symptoms is based on many factors including severity and location of the concussion. See your physician if the symptoms persist. http://www.cdc.gov/concussion/pdf/facts_about_concussion_tbi-a.pdf