Yes: Fainting upon standing up in a teen age girl sounds like "orthostatic hypotension." It is a condition that you should definitely have it seen by your doctor. Your doc may need to clarify other symptoms you may be having and perform tests. The issue that first came to my mind based on your symptoms is irregular heart beat, but other conditions need to be ruled out. Please see your doctor. Cheers
Answered 3/24/2015
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A doctor has provided 1 answer
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