hi, lately i have been very worried with my symptoms. i am a 17 year old male and im pretty sure i have anxiety but in any case i worry alot about two things. my symptoms are, shocks of pain in the back of my head lasting 1-2 seconds at a time, nausea, sometimes vomitting, intermitent fever, chronic dizzyness and lightheadedness, hot flashes and ocasional uncordinated walking. I have been terrified of a brain tumor for over 7 months now as well as leukemia for the past week or so. I have had 3 normal neurological exams as well as a normal CT scan of my head. I'm now booked for an mri of my head and my first question is,
If i dont get the contrast enhancment is there a chance the mri could miss anything?
My second question is, is it possible to rule out leukemia with a normal CBC (complete bloodcell count). Because i have been worrying about the possibility of these two cancers.
Please input would be great. Thank you.