Yesterday, suddenly, out of nowhere, I noticed that a spot on the bottom of my foot, just under my little toe, was sensitive to walk on, as if I had bruised it. I turned my foot over and it seemed bruised, then I looked at the side and top of my foot near my little toe and it was covered with a bruise. I did not injure myself. Also, up until yesterday morning for about 3 days I had been having a headache, that felt like sinusitis (with no mucous at all), and it finally went away. Other than having somewhat elevated hypertension, for which I take 12.5 mg of metoprolol, I am extremely healthy. What could this be?