Many, many things: Have you discussed this with your primary care physician and have you had a complete work-up? If not, please do so right away. The possibilities are so numerous (cardiac, endocrine, pulmonary, hematologic) that they could not be adequately addressed here without knowing a lot more about your medical history.
Answered 7/9/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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