Hey there!
I have had headaches my whole life. They are not migranes. no clue they were coming. I have MS. My headaches helped me find this out lol but the MS didnt cause them :/ however I HAVE been taking topamax and NO MORE HEADACHES! MY LIFE IS A MILLION TIMES BETTER.I was so miserable. I was having the worst headaches you could possible imagine. The same as what you described but even worse. lol good luck dear!