i am a 47 year old female,6months ago had a ct because i developed the shingles in my right eye. i have had them 3times over a 9month spand. the pain was so bad i thought i was dying.they said the cyst was 4.2x4.0cm,more or less learn to live with it.i had an mri this week and now it is 5.1x3.8x3.9. i have soo much pressure in the back of my head at times and behind my right eye at times. i have had so many health problems over the years,have not worked in 3years.doctor says none of these problems have anything to do with the arachnoid,recheck in 1year. they say my problem is fibromyalgia. i beg to differ.