That's rough, Ken'. I don't think they're sure it's CH, or they probably wouldn't have prescribed indomethacin, which doesn't treat CH but a condition that's a CH "lookalike."
You are getting three preventive medications and no abortive. That's pretty weird. Two of them, or all three of them, can make you feel like crap in various ways. You weren't prescribed either oxygen or some kind of triptan, such as Imitrex, for stopping your attacks? No attempt to try prednisone while the preventive cocktail takes effect? When you say "high doses," what were the actual dosages? (I'll bet they're not high for treating CH.) Are they monitoring you -- both Depakote and Verapamil should be monitored in the first weeks, for different reasons.
Get on the vitamin D3 regimen. GET OXYGEN. READ THIS: https://clusterbusters.org/forums/topic/6213-basic-non-busting-information/
What are your actual symptoms? Can't be still during an attack? Eye red, runny? Nose runny? Pain where? Pain when? How long? Shands has a good general reputation, but most docs suck at treating CH.