your symptoms sound very serious,,,get to your dr,,be honest with your parents,,have a MRI and CAT scan ,,looking for bleeds,and internal injuries, Also run a blood panel,,even check out your liver,sometimes liver problems are simular,,,,,,,you dont want to end up dead or in a wheel chair,,,,Im a Ball player too,,,,,,that basketball will still be there when you go back,,and pray to the Lord for giudance ,strengh,and healing,,,,,bobber