Many things: Certainly pregnancy needs to be considered, esp if you aren't using birth control. A 1-day period may have been irregular bleeding (breakthrough bleeding) and not an actual menstrual period. Could be a GI cause or gastritis, but those usually have abdominal pain associated.
Answered 6/10/2014
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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
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