I once suffered through six months of chemotherapy every Tuesday at the Western Genearal in Edinburgh from April to October right throughout the pigeon racing season ,I felt rotten much of the time but I persevered,bred young birds trained twice a week and raced the full programme (with my usual lack of success).It might have been rank stupidesty or a wilful ignorance of the dangers of such behaviour, but I was determined to get the better of the. cancer and not become an invalid.I wish you all the best for a happy outcome.