Brief Answer:
Considerations
Detailed Answer:
Hello and thank you for submitting your question.
In light of your upcoming trip, I highly recommend you see your physician for a proper physical examination and blood work, because you are absolutely sure the bruises aren't from an 
injury to the area. Blood tests to be performed may reasonably include a CBC, metabolic panel, 
liver function tests, coagulation studies, Iron studies, and possibly 
urinalysis. Also mention any medications you are currently taking as well as general diet and alcohol consumption. Of course, any lab work will be performed at the discretion of your physician. In the meantime, please discontinue any anti-inflammatory medicines and 
aspirin, unless the aspirin is for heart health, as might have been prescribed by a physician.
Again, thanks for submitting your question and rest up for your big trip.
Take care,
Dr. G