From what I have read, Bisoprolol has fewer central nervous system side effects apparently which lessens risk of depression. I know from past experience that other medications in this group may cause fatigue but the best person to discuss your concerns with is your Dr.
I wish you the best and hope your body tolerates the medication or your Dr. switches you to a better choice for you.
and Heart/Cardiovascular Disease. "She Stood in the Storm & When the Wind Did Not Blow Her Away, She Adjusted Her Sails."