Hi, it is me again: I want to thank the two that answered my inquiry about palpatations. I really appreciate it and I feel that I am in the same class. My doctor has given me Toprol to take for my blood pressure and also Unincet,but, I stopped using that because the way that it made me feel; the two was working against each other. Would your BP dropping too low(110/55) cause palpatations? Thanks, Beenie