Many possibilities: Depending on age, medical condition, activities, it could be many things. Muscle strain, even with "minor" trauma could do this. A cracked rib is possible. Rarely it could be referred pain from the neck or mid back. If it worsens or continues, see your primary provider for an assessment.
Answered 12/10/2013
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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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