thanks to you both, i had my second scan today, not painful at least, now i have to wait at least a week maybe more before i know something. The only major problem i had was convincing them i needed patient transport. spent very fraught day wednesday getting them to change their minds. They did but if i have to go to this particular hospital again i might not be so lucky.
to be brief i am going to the loo a lot and they can't find an explanation so i had a colonoscopy and they found polyps, which were taken out, then i have had two X ray scans to see whether there are any cancerous cells.
so far that's taken 5 months or so.