I suffer from ectopic heartbeats how many skipped beats do you have to have to be considered dangerous?

Most skip beats are: Benign. It's the nature of the skip beat and associated symptoms that matter most and not the quantity. Follow up with your cardiologist. Take care!

Thousands/day: Most people talking about "skipped beats" are usually referring to Premature Ventricular Contractions (PVC's). If there is nothing else wrong with your heart and you are otherwise healthy and without other symptoms, less than a few thousand beats per day is safe. Even without that number, frequent PVC's could be a sign of another heart condition, so get checked out by a doctor to be safe.