It's been a long time since I posted, and in many ways I have a superstitious dread about posting details of Herbie's illness. But I want to keep a record of how he's doing - at the moment, his vet bills are the only record I have.
He was finally diagnosed with lymphoma on 4th September (long story, I'll post later) and had his fifth chemotherapy treatment (intravenous vincristine, part of the COP protocol) on Tuesday 8th October. His urine test showed microscopic traces of blood, so the vet asked us to lay off the cyclophosphamide for a week, and see how he's doing next time.
One of the risky side-effects of this drug is hemorrhagic cystitis, so I'm glad they caught the signs early. See Graham and Prince's blog for how uncomfortable this can be: http://grahamandprince.blogspot.com/2007/07/wells-run-dry.html