I dont know what to do... long story short... felt like someone was hitting the top of my head w/ a hammer, went to the dr, gave me antibiotic, thinking it was a sinusinfection, headache went away for a week, can back, no pounding, just felt like a ton of bricks on my head. Went back to dr, sent me for a catscan, called me 20 mins later, said they think they saw an 8mm anuersym, sent to ER. After another catscan, an MRI, a spinal tap and 5 days in the hospital, they found nothing... Neuorlogist, last week truly believes it was "just a migraine" and it came back due to a rebound migraine. I had this 2 other times in my life, but just cried myself to sleep. Is pounding on the top of the head a sympton of a migraine!?