HI MARTIN,
Sorry to hear about what you are going through, my wife has colon cancer since 2002 with mets to liver and lungs, she is on a Vectibix,, its new and its a Target Therapy,,, by all accounts Avastin is a good chemo,, and not sure you should come off it,, you need to talk it through with your Dr and also see what scans show,,, do you have a good diet?? do you know about ,,sugar and cancer?? iron and cancer?? linseed oil and cancer?... asparagus and cancer?? and tumeric and cancer,,, also your body,, alkaline ad acidic,,, check them all out on google it will help you a lot ..
We do hope scans go good for you, let us know outcome stay positive and never give up ,,, we are all on this journey with you ,,,
Best Wishes Rob and Barb