Hi Dove96,
Thank you so much for your suggestion of the Alpha Stim, I went and read their UK site, and I desperately need something more for sleep disturbance and - especially - deep, dark Depression, let alone the Cluster Headache attack escalation.
Unfortunately there are 2 things that stop me trying it: Cluster Headaches are entirely different animals to migraines, although the effect of severe pain and miserable days are the same. I suffer Neuofacial Parastheasia and TN as well, the Stim would be guaranteed to bring on the most horrendous attack.
Thank you for caring, I am very happy it is so effective on your problems.

Dave.