I must have been getting complacent. In for an extra early appointment for Taxol today - some sort of flag with the bloods so have to be retested. Still in the waiting room 2 hours later.
All good in the end... I still don't really know what the problem was, just that it wasn't me but good I suppose that it was checked out. One third of the way through Taxol now (unless I count the week to come and I'm not going to)!