Hi there JulieJ, I don't know how I missed this very important post of yours at the end of last year but I am so glad I have found it now. I have some concerns over recent health problems I have be having in recent months and your post here has made me get to grips with it and I think I need to will book an appointment at my local GP's and possibly have such tests as the blood test and scan you so clearly explain. Thanks so much JulieJ.