I have what I have been told is an osteoma calvaria tumor in the left side of my head that pushes into my brain. I have migraines, constant headaches, lightheaded, pass out, have fallen and hit my head on concrete many times, ringing in my ears, impaired short term memory, some stuttering. I was told at first that this could be taken out now the military says no. This has not been biopsied or anything else. I also have other tumors in my body. Can you explain more about this to me? Thank you.