Chronic or Episodic Cluster Headache attacks or somewhere in between?

What is the difference between chronic or Episodic Cluster Headache attacks. Where do we draw a line and say, this is clearly one or the other. Our timeline shows visualizes your attacks-pattern, to understand it better.

Here you see examples of 3 different timelines, showing the attacks of different members of our group. I’m the top one and as you can see, I’m doing pretty well at the moment.

We are all different, but I’m sure we also have our similarities. Our attacks-pattern is at the base of understanding who we are as individual and how we are compared to the rest.

The changes in our attacks pattern, could learn us something about our interventions. Are they effective or not?