Yes : Yes it probably is a bug. But if it doesn't go away you need to be seen by a health professional.
Answered 10/3/2016
5.4k views
Not sure what you: Mean by dark colored stool. If you have black, malodorous, tarry stool or you vomit material that looks like dark coffee grounds, either of those could be signs of GI bleeding. This would merit medical evaluation.
Answered 6/10/2014
4.9k views
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