Seal,
I was just wondering about the severity of your symptoms and their fast progression. The rate at which things keep cropping up may not be related to actual growth of the AN itself, but rather by what is called "tumor related edema". This is inflammation of the surrounding structures, caused by the presence of the tumour. For example in my case this caused sudden hearing loss (a month after I was diagnosed). Symptoms of this severity may be relieved by a course of steroids, which relieve inflammation- if you find that your symptoms are becoming unbearable, you may want to ask your doctor about this. My hearing loss was reversed after I took the medication, and I also found some relief from the dry eye (which returned afterwards).
I have another question too, when say you don't have feeling, do you mean an "altered" or "reduced" sense of feeling, or no feeling at all? I have read about many people having about reduced feeling (also called hypoaesthesia or something like that in medical terms), but complete loss of sensation? This must be very annoying.
I hope you will find your way quickly out of this mess.
Marianna