Health anxiety about brain tumor. ?

6 weeks ago I woke up dizzy and lost balance. Doctor next day said infection anld very blocked in the other ear. Antibiotics cleared up the one ear, and I had other ear irrigated. Then aches happened in irrigated ear and more antibiotics (I drank for a few days in these). Since caught sons cold and sinus issues. Thing is I feel ongoing mild lightheadedness, focused from my nose + around temples. I'm worried about a brain tumor.