Two years ago, my husband had a subdural hematoma which was successfully drained. For the past 2-3 months, he has been having severe headaches to left temporal area, blood work (including sed rate & CRP) & CT of head normal, no tenderness to head. About 3 nights ago, pulse to left temporal was bounding & now has a protruding blood vessel to area. Have an appt with neurologist on Dec 8th, do you have any suggestions as what may be cause? From CT & lab work, feel that family & emergency room doctor has ruled out giant cell arteritis. Thank you