high blood pressure
"I am a 38 year old female. Before taking atenolol I had high pulse and a fast heart beat (very scary feeling) also heart palpitations. I was a nervous wreck. I would wake in the morning with my heart pounding and out of breath. My doctor started me on atenolol 25mg about 2 weeks ago. I have never felt so normal. I can actually wake in morning and feel good. I am walking every day and on a strict diet with no problem. Thank goodness for atenolol."