Yes, the Vit D3 did wonder to the cluster headache. Thank you to CHfather for sharing this.
In addition to Vit D3, I also find this help, eat watermelons and drink coconut water (from real coconut if possible), eat more nearing and during cluster period.
Also go for massage to relax and rest more.
To abort the headache, put peppermint oil (from young living) in forehead and behind the ear and if the headache still there, use oxygen (inhale deeply and hold for 1-2 second before exhale)