Dizziness, Lightheadedness and Numbness or tingling. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms dizziness, lightheadedness and numbness or tingling including Middle ear infection, Hyperventilation, and Labyrinthitis. There are 41 conditions associated with dizziness, lightheadedness and numbness or tingling. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.