Lightheadedness can be caused by various factors, including dehydration, medication side effects, sudden drops in blood pressure, low blood sugar, and heart disease or stroke
. Other possible causes include anxiety or panic, inner ear problems, low iron levels in the blood, and certain heart conditions
. If you experience lightheadedness along with symptoms such as chest pain, shortness of breath, or sudden onset of headache, numbness, or weakness, it's important to seek medical help immediately, as it could be a sign of a serious condition such as a heart attack or stroke