Cluster Headaches
"Been having cluster headaches for twelve years. I&#039;m on my forth cycle now. My cycles come about every three years. I tell everybody I know cluster headaches are sooooo painful. Im so blessed to have been prescribed verapamil by the first doctor that was seen by. Verapamil usaully takes 10-14 days to fully work. Im so thankful for all the advice and its good to hear from people understand my pain."