HI! I have a lump back on my head,( lower) there were is cerebellum located, and im worried if that s something serious, i got also dizzy and sometimes i got headches, i feel like that like 2 months already i don t know if thats some cyst or maybe brain tumor.. the lump is hard and does not move and does not hurt. For one month ago i went to doctor and she said its because i don t wear my glasses, she said i need to wear them more more often im feeling better when im wearing them but I still felling sometimes dizzy, but i don t know if thats beacuse of that lump or cyst or because of my glasses..? Im just afraid if thats a brain tumor or some serious condition..? Please I am very worried..