On the 6th of October I had a Doctor's appointment. At this time during check in my BP was checked and was a little high. I believe it was somewhere around 151/80. Prior to this appointment I had been having my BP check on nearly a weekly basis since April this year. It had been running most of the time 115 up to130 with most being in the teens over 50s, 60s & 70s with most in the 60s. There have been a few highs such as 145/74, 141/70 & 139/77. A couple of months prior, I went for an annual stress test and at that time I checked in with I believe it was 150/80 something. The weekly checks have been done with a BP machine and those done in the Doctor's office were done by a human. During my visit with my Doctor, he changed my BP medicine from 50MG of Atenolol to 5MG of Bystolic. Since a few days after the change, I often feel very flushed in the face, forgetful, confusion, seem to lose my train of thought more frequently, change in bowel movement.......With all that said, I guess my major question is are these some of the side effects when taking Bystolic? Should I go back to my Doctor and request he put me back on Atenolol? I believe the Atenolol was doing the job. I had a few spikes and most of them were while in a Doctors office. I might add I have been taking the Atenolol since my Heart Surgery in 1996.