Symptoms of a Recurrent Thunderclap Headache?

Sow: How long did it take for your symptoms to resolve, and did you have recurrent symptoms? Sow: I had four of the eight headaches i had while i was in the hospital. And so they up my dosage of vrapamil from forty milligrams three times a day to 60 milligrams 3 times a day. He says he still occasionally feels that initial throb that someti set off a headache.