Thank you both. I have just heard from him and there is no need to panic (thank god!). He has to do a precautionary urine test and a precautionary x-ray but nothing showed up on examination.
He's got an appointment with the Diabetes nurse at the surgery next week I think so will get some more information there.
I've told him he's got to give up beer and chocolate and eat more vegetables. That has gone down like a lead balloon
Just my blood test (and my aches, pains, itchy skin and ezcema patch) to contend with now!