hi. i am realy worried as i have had a lump on the back of my head (near the top) for a couple of weeks growing all the time and allways painfull, the swelling of this lump has stretched down to the bottom of head at the back of the neck. tonight i found 3 smaller lumps near this large one and they are only tender to touch where as the large one is painfull all the time. i take codine pain killers for hip athritus and back pain but the codine is no good for the head problem. i was reciently diagnosed with mild narcolepsy due to constant tiredness and short term memory problems . i am worried as there is history of cancer in my family