So I'm new here, but not new to CH.  Been suffering for about 12 years, formally diagnosed for about 3 years.  Now is a particularly bad time of year for me.  Major temperature swings 30's at night 70's during the day...really sets them off. 

i recently started going to the gym.  Finally decided to get back into it after about 10 years.  My problem is about an hour after i get done exercising, like clockwork I get an attack.  So almost daily now for about a week I'm blasting myself with imitrex injections at work.  I'm also on Verapamil, which usually works once I start a cluster in getting me PF, then ween off.  Now I've tried taking the Verapamil before working out, and after.  No difference...Usually i only need to take the imitrex at the onset of a cluster and once on the verapamil, generally all set, until i get through it.  But now since exercising its both everyday with no end in sight.  Of course I want to get off the Verapamil (we all know what it does), but can't if I continue having daily attacks.  Anyone else effected by exercise?

I'd also make sure you aren't getting dehydrated whilst at the gym.