Hi Patricia
Not sure about wisdom - those of us who have been here a while just like to help based on our own experience combined with what we've read in the (scientific/medical) literature, as Dancinggirl has just done
Sorry to hear you are still struggling. I would disagree though about increasing oestrogel at your age if you are 62. I would stick with no higher than medium dose if you can bearing in mind that some women achieve estradiol levels of 600 pmol/l with this dose!!!
I am not clear why you changed to estrogel if you were happy on the Elleste solo tabs - except that at our age (I'm 63) transdermal HRT is thought to be safer) - but there was no need to cut tabs in half as Elleste comes in a 1 mg strength. I would agree that using 0.5 mg oestrogen would probably be too low to warrant a Mirena though and could lead to the atrophy I mentioned.
If your lining was 5 mm when measured very recently (how long ago?) then that is OK and I don't think would be atrophied - which would be something like 2 mm or less so I have read. I don't know enough about Mirena to say whether even at 5 mm it would still be shedding with added oestrogen (but bleeding is supposed to stop after 6 months) - personally I wouldn't have thought so - but I'm not a gynae! There must be an equilibrium point when using a Mirena, where the oestrogen dose is just right to maintain the endometrium at a thickness that is not too thick ( so doesn't shed) but not so low that the progestogen causes endometrial atrophy. However no-one can say for certain except having another scan.
Also because of the great variability in absorption of gel what one woman "gets" with 1 pump can differ by a huge amount to another woman's level. I would have thought 2 pumps would be approx equivalent to 2 mg - but of course you can't necessarily compare due to absorption differences as I said. How long ago did you change to gel and how long were you on 1/4 tab ie 0.5 mg?
I'm rambling and probably not being very helpful - but just a few thoughts!
Hurdity x