It's not really an issue beyond not being able to wear cheaper footwear but being raised by a mother who was obsessed with quality footwear I don't find it all that alluring to go cheaper. Like you say, a good pair of shoes last for years, only problem I've been having since turning 30 is that my feet have shrunk, no one told me about this
! I'm down 1.5 sizes now and it's looking like 2 now, I thought I had at least another few decades before I actually started shrinking...
Hormones definitely come into play with sensitivities, I notice it too. I can sort of analyse when I'm due by the sensitivity of my skin which is actually quite handy with PCOS as it's a complete mystery most of the time. Also start craving sugar then which I've lost all appetite for altogether otherwise. It has to do with the male/female hormones balance but can't remember the technical aspects of it anymore.
It's not so much about having two routines really, Enid, but more than you sort of make a selection of products each routine to suit your needs. It's second nature to me now but you sort of get there intuitively if you need something more soothing, maybe add in a calming mask, etc. or could a bit of a punch to perk the skin up by evaluating the skin after each cleansing.
Minty, if you don't mind waiting I'll report back how the Shiseido performs as soon as it arrives (I'm guessing it'll be after Christmas) but in theory, yes it could be a good candidate for you.