What Causes Head Heaviness In The Skull?

Hi, may I answer your health queries right now ? Please type your query here...hi, last few days my heads feeling really heavy and its not headache its very strange feeling. I had mri done about 8months ago since I was worried about any brain tumour, but thank god negative. Is it possible to have tumour after 8months of mri which neg than? I can feel the pain in the middle of my head, like in the skull. Thanks, jazz