It started out when I had to have a bowel movement. I received no warning signs. Went to the bathroom, took 3 advils after that, slept a couple hours and it was gone. I was camping out when all of this occured. about 2 or 3 hours later, I woke up to the sound of rain, so I got up to close the windows on my tent, and BAM! All of a sudden, my head was pounding again. I was taken to the hospital where they gave me an injection of dilaudid and phenergan. I had vomited several times during this episode, also. I was sent home with 2 prescriptions...1 for dilaudid, the other for phenergan. I slept again for about 3 hours, and woke up with yet, another migraine. I took a dilaudid, which started to take effect in about 20 minutes. I slept, and feel ok now, but feel like I could possibly have another one. I'm still a bit over-hung from the dilaudid. Although I have a history of migraines, and had the whole work up several years ago, which it was determined that my migraines were stress related, NEVER have I had this many of them in a row, within the course of 24 hours. Also, normally, when I get migraines, which is seldom since my divorce 14 years ago, I have warning symptoms. With all 3 of these, I had no warning. They were full force from the onset. What do you think could be causing these?