Dear Anwilla26, helo.
The symptoms which you have written are indicative of concussion- drowsiness
, difficulty in balancing, persistent headache,etc. after head injury
. Although problems arising due to concussion subsides in some days to weeks with proper rest, you shoud get a CT-scan of head done if problems are still there.
Rest means proper rest- both physical and cognitive i.e. no television, no messaging etc.
I hope this will solve your problem.