I kave a pain in the right side in the back of my head and it feels like if I have a lump it runs to my neck its been like 2 weeks it wont go away?

Go see doctor. This needs eval by your doctor b/c any new onset ha or mass on body needs further eval. Most often this is related to enlarged lymph nodes which can be infectious or inflamed. In extreme cases the mass could be a malignancy.