high blood pressure
"I was taking atenolol for almost 2 years and the only thing I noticed was the inability to push my cardio workouts too far. I switched to Coreg CR and I felt cloudy, and felt like a rubber band was around my chest. I am trying Bystolic now. First thing I notice is that my arms fall asleep at night when they are bent on my chest. I will most likely switch back to atenolol in a few days if I still have side effects. Besides the wall I was hitting when being agressive with cardio-exercise, atenolol 25mg made me feel very calm."