I donât think the expiry dates matters that much for meds:
You should do a blinded experiment to control for the placebo and nocebo effect which are powerful. Depending how long until you have the effect youâll have to use one bottler longer until you check.
If I were ever able to get mine to 70, youâll never hear me complain about it, ever LOL. Moving to 4mg might work but that seems to be the upper limit and sides may creep in at that level, so If I were you, Iâd change nothing (for a while) unless it keeps moving higher (on your next test) especially given the fact that your joints seem to be loving Pita at 2mg. Just MO.