high blood pressure
"Started this drug one week ago today.  5 mg a day.  Have had a headache ever since.  Blood pressure has been low most of the time except in the middle of the day for some reason, it can shoot up the 130's and 140's.  Early in the day and evening its in the 110's or lower. I also take 25 mg of metoprolol (for years).  Headaches are getting worse so I 'm going to call my doctor tomorrow to see if I can try something else."