Pretty much all the time when I get headaches, if i dont take any paracetamol (or ibroprofen or similar type tablet) or dont take them soon enough then the headache will get worse and I will end up throwing up. Have been like this since primary school. Have 2 vivid memories of throwing up in the playground after school, probably because i didnt drink enough but yes, ive had this problem all my life and these are normal headaches, not migraines. So i always take pills if i can, am not one of those people who can see it through (withoight taking anythign for it) cos i known what will happen if i dont. I havnt gone to see the doctors about it, simply because I dont get headaches that often anymore and I know all i need to do to prevent being ill is to take paracetamol. I dont know if that helps at all but hopes it reassures you, but by all means go to doctors if you are worried (and if they say anything thats helpful let me know!) xx