Atenolol and dizzy spells

I've been on it for about a month and have been getting more and more dizzy each week. I am on 50MG and am wondering if I need to go down to 25MG. I usually have lots of energy and I seem to get tired mid-day now. Wondering if this is because of the drug. I am also weaning off of Effexor so this might be causing it too.

Have been on med for 1.5 years. the last 7 months heart rae has droped to the point of having 10 TIA's. all stroke syptoms testing has come back negitave. For last three weeks have been off med and no TIA's Has anyone else had this trouble.

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.