Arimidex and headaches

Fatigue, flashing in the left eye, worsening migraines:
I have been on Arimidex since July, 2007 (after lumpectomy in January 2007, chemo, a mastectomy in same breast in August, 2007 followed by radiation) and seemed to be tolerating it quite well, except for the fact that I wanted to go to bed at no later than 9PM every night.
Recently, however, I had noticed retinal problems in my left eye (could also be a result of my nearsightedness and my age --61) and worsening migraine attacks which I could not relieve completely with my usual medications. I did research on Google and found that Arimidex could indeed lead to worsening of headaches and perhaps lead to retinopathy as well.
This morning I decided not to take the pill and called my oncologist's office to find out what he thinks about stopping it for a while.
I have also made an appointment with a neurologist since I haven't had a brain MRI since 1987 (to rule out other causes than migraine for my headaches).

Hi, I was diagnosed Sept 06 with a small breast tumor following a routine mammogram I had a Lumpectomy and 4 lymph nodes removed in Oct 06 In January 07 I started 15 sessions of radiotherapy and then was started on ARIMIDEX which i have taken religiously each day for a year even though I have felt WEAK ,slight ACHES in my knees, TIRED, and WEARY, SINUS infections, BOWEL PROBLEMS, METALLIC TASTE all of which eventually in December got me down so much my GP signed me off work with depression and I am now taking fluoxetine to lift my mood I am convinced the Arimidex affected me and has played a big part in the way I was feeling for the last year I told my breast care nurse about this she advised me to stop taking it for 1 month I have not taken it for 4 days and feel a different person already having more energy and feeling like I can cope with life and full time work again Has anyone else experienced the same side effects as me? from Rose SNY