Hi Sammiejane & thanks for the clarification on the TSH
. Good that it's not 30! But, if it was 5.2 eight weeks ago that looks to be above top of range, suggesting you just might be becoming hypothyroid. Have they tested your thyroid antibodies do you know - I assume so as you say they did some autoimmune tests? As you have another autoimmune condition, that does increase your susceptibility to develop others, so it would make sense if they did a full autoimmune profile.
It's correct TSH does fluctuate according to time of day etc, but should really still stay within range, I think, unless there is other non-thyroidal illness ongoing (which can cause iffy thyroid levels temporarily) or the gland is under autoimmune attack as in Hashimoto's or Graves.
It's standard practice not to treat with thyroid medication if the TSH is not far above top of range & the GP should then adopt a watch & wait policy to make sure you are monitored frequently & he/she can then intervene with treatment to make sure you don't have abnormal levels for any significant length of time. As your TSH is now back within range let's hope whatever made it a little high in the earlier test has now passed.
Both hypo & hyperthyroidism can cause hair loss, but I hear what you say about HRT & I think your insight over time is important. I also have thinning hair (worse post-BSO) & it is a worry, though as I had a lot to start with luckily mine still looks OK. I'm also older than you so I do understand how distressing this must be for you.
So sorry to know your relationship ended too. You have not had good luck by the sound of it.
All I can suggest is to get your GP or whoever tests your thyroid to repeat the bloods 3-6 months after last test & make sure the Menopause Clinic knows you have had a raised TSH in the recent past. I hope they can give you some good advice about your HRT.
Please try to get as much rest as you can, exercise within moderation & eat regular healthy meals so that you are giving your body the best conditions to recover from all you've been through. Sorry Sammiejane, that all sounds pretty lame. Wish I knew what else to suggest.
Wx