....careful with the OTC...will tear up your stomach w/o touching the CH (well, maybe helpful for shadows)
....a journal is a most excellent tool for determining triggers, and most helpful for a headaches specialist in confirming diagnosis. know of one who considers journalling itself as an indicator of CH. note that many neuros are as clueless re CH as most PCP...ya need a specialist. at the bare minimum ask the neuros office if the doc is familiar with treatment of CH...
...an energy drink with at least 120 mg caffeine and 1000 mg taurine is especially helpful for many clusterheads....improved the effectiveness of oxygen greatly for me, sometimes all that was needed if used immediately upon feeling hit coming...
...agree with kat re D3....low risk option with high upside...
....and yeah...welcome! sorry you are in the club nobody wants to be in....