My doctor put me on Atenolol (50MG) about six months ago. After one week I was so dizzy, restless and my feet were numb and swollen. I was always tired but couldn't sleep. My blood pressure fell to 90/46 and I though I was going to pass out. I cut the pill in half and take it with my breakfast. I do notice the difference. My blood pressure is good, I don't have the dizzy spells and I got my ambition back. I think these doctors start a person off on to high of a dose at the beginning of a new pill. There's times I skip it for a day. My life seems much better now.