Cardiologist said happy for me to leave his care now but as i sometimes have nocturnal tachycardia says i should keep taking betablockers why so?

Consultation : For personal attention to a medical concern, consider a consultation with a doctor here on HealthTap. The "inbox consult" allows you to message back and forth like email, and is good when a lot of information needs to be exchanged (like prior test reports, etc.) A video chat consult allows you to talk to the doctor (for a certain limited amount of time) so it's good for a quick question.