question: hi, my name is debra .i went to the dentist a week ago and find a dark spot on the upper roof of my mouth. can this be due tomedication that i am on or something i need to be concern .at the time i was on two blood pressure medicine and one has a fluid pill with it. My doctor just taken me off the blood pressure because my legs became very dark. can this be a symstom from my blood pressure medicine.