What you're experiencing is typical when taking Metoprolol
. This is a very common drug and
lot of people take it. I take 100mg. per day. Considering your surgery, I would not altern your dosage without first consulting with a professional. Now, I occasionally experience a build up from taking it for such a long time. Symptoms are a slow heart rate, and a heavy feeling in my chest when exerting myself. Whwn this occurs, I will purposely skip a dose, and this seems to reset things.