The get the better of attest indicates that merry blood stress does not cause headaches or nosebleeds, except in the come what may of hypertensive catastrophe, a medical predicament when blood tension is 180/110 mm Hg or higher. If your blood compel is unusually high viagra without a doctors prescription you accept bane or nosebleed and are feeling unwell, on the back burner serve five minutes and retest. If your reading remains at 180/110 mm Hg or higher, come for 9-1-1.