It's great to hear you sounding so much more positive OSJ, though I realise that it's only the beginning of your new journey with DH.
For me, it's thinking rather than talking that's so tiring - probably exaplains a lot - and I think you've probably done enough of both over the last few days to last a lifetime.
Don't know if it helps (including for you, BOM) but I was extremely run down for 4+ months at the end 2005/start 2006 which included a chest infection that I just couldn't shake off. Eventually decided to try acupuncture at the recommendation of a friend, though it was a bit of a last resort and I didn't honestly know if it would work. It was bloody marvellous!!! I was so shocked. Felt nearly human again at the end of the first session (DH couldn't believe the change in me when I came home), though I reckon it took three sessions to get rid of it altogether and feel back to my former self. It was a real indulgence for me because acupuncture isn't the cheapest treatment but it was the best few quid I could have spent.
Keep well