I am so very grateful for all the kind words and wishes, thank you all so very much. I have an update which is for once a bit more positive than it has been. The new immunotherapy drug the oncologist changed me to a couple months ago does seem to have targeted the cancer, even to the point of reducing what had been increasing over the past several months by one half to one-third. The side effects were unbelievable, I could not eat any solid food without nausea, at times I could not even drink liquids, my energy level was at an all-time low, I could hardly bear to walk with my left leg...fortunately these have improved, so perhaps the gain was worth the pain, though my oncologist said he was sorry the reaction was so severe and he would do everything he could to prevent a recurrence, starting with a resumption of the treatments at half dose this time. Hoping for a "cure" may be overly optimistic given the aggressive nature of this cancer, but who knows. I am still sad to have had to give up my fish/tanks, but even with any improvement, the difficulty I had maintaining the tanks as I consider necessary was not really fair to the fish. They now have a good home so far as I can tell.
Byron.