Greetings. Welcome to HCM and thank you for your question. I understand your concern. In congestive heart failure, we have to deal with an insufficient heart which fails to perform its tasks . This insufficient heart tries to compensate with tachycardia, and is almost an inherent finding that people that suffer from congestive heart failure have high heart rate. Every mild to moderate intensity physical activity, sometimes even everyday activity, can cause shortness of breath and increased heart rate. Also, it should be stressed that carvedilol is a beta-blocker that does not act on slowing the heart rate. Most of the other beta-blockers and verpamil and diltiazem of the calcium channel blockers exert this effect, but are relatively counterindicated for usage in congestive heart failure. My opinion is that no further treatment is needed, regarding this problem, after carefully weighing the risks against the benefits. Also, it is advisable that you have two diuretics (one loop and one potassium-retaining diuretic) and an angiontezinogen converting enzyme inhibitor (ACE-I) in your treatment regimen. Also, if you have not had echocardiogram in past six months, I would suggest you to do an echocardiogram, and ejection fraction should be reevaluated. I hope I was helpful with my answer. Take care. Best regards, Dr. Meriton