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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Blacking Out, Fainting, or Loss of Consciousness

So far, your answers indicate that neither something you take nor any recent illness is contributing to your lightheadedness with standing.

It may be that you just don't drink enough fluid even though you may not be thirsty. If your urine has a darker yellow color than usual, this would support mild dehydration.

Increase your fluid intake. If you don't have high blood pressure, fluid retention, or heart failure, consider adding a little salt to your diet.

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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.