what causes loss of balance
1 The flu or an upper respiratory infection can cause this condition.  Meniereâs disease changes the volume of fluid in your ear, causing balance problems, hearing loss, and ringing in your ears. Its cause is unknown.
Dizziness and loss of balance are sometimes included in that long list of side effects that come with medications. If people are drowsy from medications then it affects their reaction time, says Bywater. And your risk of dizziness or balance problems increases if you're on multiple medications at the same time.