Seems we may now have an answer to what has been causing my lack of body temperature control.
Since returning home have now had lots of blood tests chest xray and CT scans, which have concluded on Friday with reports describing
'a mass measuring 16.6cm long by 10cm transverse by 7.5 cm replacing almost the entire right kidney, with a presence of speckled calcification within the mass suggesting renal cell malignancy.'
"Three pulmonary nodules as described are most likely metastatic.'
Looks like I could have an interesting time ahead.
I guess the lesson is that if you report to your GP, as I did that, you don't feel as well as you think you ought, and nothing is done, then its time to change your GP, so If you have, or know of anyone exhibiting mild chronic symptoms get them to see a doc and have tests until a cause is found and resolution is initiated.
Interestingly my blood test results have (for the last 4 years) a comment saying.
'An eGFR between 60-89 ml/min/1.73m2 (mine was) does not exclude the presence of chronic kidney disease. Follow-up may be indicated. Refer to
Kidney Health Australia | Kidney Health Australia'