Symptom Checker
Step 4: Read and complete the decision guide to learn more about your symptoms.
Blacking Out, Fainting, or Loss of Consciousness
Did the lightheaded feeling start after you stood up from a lying or sitting position?
Disclaimer: This content should not be considered complete and should not be used in place of a call or visit to a health professional. Use of this content is subject to specific terms of use & medical disclaimers.