supraventricular tachycardia
"After hospitalized and diagnosed that I have SVT, I've been 30 days on Bisoprolol. During those 30 days I feel tired, feeling like want to take a deep breath and release it and at night when I am about go to sleep - once I lay my body on bed - I feel a strange in my chest. It's not SVT (heartbeat race). I can not describe it, but I know the feeling is never happen before I have Bisoprolol."