What Causes Headache Accompanied By Rapid Heart Rate And Nausea?

Hi I wake up almost everyday with a headache in the front of my forehead that goes away as soon as I get up sometimes accompanied with rapid pulse 120-130bpm and today some nausea. I am 56 years old and require oxygen due to a congenital lung disease. I take 100 mg of losartin daily as well as metropil tartinate sp.