I Have Persistently Felt Dizzy Since 5th Grade And I

I have persistently felt dizzy since 5th grade and I am now a freshmen in high school. It started after I got hit in the back of my head with a baseball. I feel like my head isn't connected to my body and I'm sort of just floating around.
I read an article on a lady with Migraine Variant Balance Disorder and it discribes me and my symptoms to a T. I've also tried many different anxiety medicines and I'm currently on Aderoll but I'm not so sure I'm taking the right stuff. Any suggestions?