After my plane ride I had an very painful(pin-pricking) headache behind my left eye. I was feeling find before I left but when landing I developed the pain behind my eye. For an hour after it still was painful, took some tylenol then some of the pain went away. But then I developed blood in my mucous and nose. Does anybody know if this is serious to see a doctor about or should I wait a while to see if the needle pricking pain comes back? Thanks for any feedback.