hI I AM 51 YEAR OLD FEMALE AND MY SYMTOMS ARE MY HEAD HAS HAD EXSPLOSION FEELINGS OF BLOOD VIENS BURSTING IN THE BACK AND TOP OF MY HEAD AND RINGING IN MY RIGHT EAR .ALSO THE BACK OF MY HEAD BY MY SPINE FILLS AS IT IS SWOLLEN AT TIMES AND MOVES TO OTHER SIDE OF MY BACK STEM BRAIN STEM . could this be a tumor. When i ws 14 i was in a major car wreck and pronouced dead . In a coma for a week . my head was fractured in 4 places. and it broke my nose . I had spinal tap test done for spinal fluid leakage . i have had a difficult life having to relearn a lot. Could my problems now be from the scar tissue ???? what do i do.?