Thank you everyone for all of your replies and your wonderful support. I certainly saw my oncologist with plenty of questions and lots of information. We talked things through and she decided in the end that it was time for me to finish the Avastin treatment since I was experiencing so many side effects. I was relieved to be honest and feel that I will be able to enjoy my remission more when the side effects eventually wear off. She also said that they do not know how many doses of Avastin are needed to improve survival chances and that I should feel pleased that I managed 11. She explained that looking at results of other surveys, that overall percentage wise women have a 4 to 5 month improvement in life expectancy after Avastin. We discussed whether I wanted to extend my life by a chance of 4-5 extra months if I was in chronic pain.
This was not an easy decision but I feel that I was allowed to talk it over with my cancer nurse first, then with my oncologist and to jointly come to a decision where I didn't feel guilty for stopping the pain, and not like a loser for giving up.
Thanks everyone. Onwards and Upwards xx