Talk with your doc: There are many possibilities, but a very concerning possibility is old blood from your gut like your stomach when it's irritated [gastritis] or an ulcer. Please talk with your doc.
Answered 10/23/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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