I have a little bit of a headache today but not as bad as I have had after some of my treatments.  I've been trying to drink more water because I'm wondering if some of my headaches are being caused by dehydration in addition to the Avastin.  I had my vision act weird today again.  I was driving home from dropping my daughter off somewhere and my vision started going kind of blurry.  Once I got home I laid down for a little bit and tried closing my eyes some.  It finally cleared up after a little while but it is quite disconcerting.  I'm not sure if it is caused by not getting enough sleep or if it is a side effect of the Avastin...