I was given Toprol last week after a cardiolite stress test due to them seeing some blockage. I have CAD and did have a double bypassy 17 years ago. I have been feeling pretty good until taking this toprol. I feel very tired, heavy in the chest out of breath, weak kneed, belching, sleepy, and dizzy and I do not want to continue. I already take a Bp med and things were under control. The toprol was started 12 days ago. Can I stop without any problems so I can get my normal life back.