It's a pleasure BK. I hope something useful comes out of it, but it can be pretty complex juggling thyroid & HRT, so I think the best we can do is compare notes & pass on what we've learned.
The flushing sensitivity - I think we hypothyroid women may just be less able to accommodate other medications as smoothly as someone with a self-regulating thyroid. A healthy thyroid fine tunes our metabolism exquisitely according to whatever else is affecting us, in conjunction with complex feedback mechanisms, to keep things running smoothly. When we have to take one big dose of thyroid meds a day my feeling is there are bound to be differences in the way our bodies cope compared with someone with a healthy thyroid.
The T - I wouldn't worry too much about precise timing, as long as it's in the morning. Presumably you'll want to get it out of the way before work anyway. I only apply mine roughly an hour after my thyroid meds because I always shower first thing & then put on the Testogel (alternate thighs) so it dries while I'm sitting on the bed blow drying my hair. Testogel dries really quickly (I think you said yours is Testim?) but that way I worry less about it getting rubbed off while still tacky as I don't dress till after my hair's dry which takes about 20 mins.
Like you, I find my body doesn't cope well with a cycle. It's not the bleed as such, but my body really, really hates the prog phase then takes an age to readjust afterwards, so that I end up with only 7-10 days out of each cycle feeling my best. I'm just about to trial long cycle to minimise the prog, but in theory that should be less risky for me because my E is low dose & we know from scanning what dose of MPA keeps my lining very thin on that amount of E.
Anyway, good luck with the tweaking.
![Smiley :)](https://www.menopausematters.co.uk/forum/Smileys/extended/smiley.gif)
Wx