I think it is being post menopausal. My energy levels sank to rock bottom once I was off HRT and into full-blown menopause...
I don't sleep well and am exhausted when I have the family to stay - it is partly emotional as I have to tread on eggshells with DD.
DH and I take Vit. D and B12 every day. Vit D as the sun radiation isn't high enough in UK, and B12 because the gut's bacteria don't work as well in "old age" as they did in youth. We are both physically well, but tired. I think it comes with the territory. BTW I'm 68.
COUNTRY, CITY, AREA, PLACE -Game 21