Well, the flu symptoms have disappeared, and been replaced by . . . cellulitis. The bacteria must have sneaked in while my immune system was busy dealing with the flu virus (I'm sure Mike T can give a more scientific explanation ). I started feeling some mild pain in my left foot yesterday afternoon, but it wasn't until late evening that I realised that it was swollen and had red blotches. Anyway, I'm now waiting for a return call from the GP practice after I phoned them this morning and then emailed them a photo of the foot, as they requested.