PsA and ankle pain



I've had PsA for 5 years now, I take mtx 15mg and this controls my symptoms.

Over the last 6 months-ish, I've developed pain in the tendons/ligaments (not sure exactly!) where my ankle meets my leg. Both sides. It's worse first thing in the morning but I can feel it most of the time.

The rheumatologist has referred me to physio however it's going to take a long while to be 'seen'. So in the meantime, does anyone have any advice on what can I do to help ease it? I am 42, a school teacher so on my feet all day, I walk a lot, swim, do Zumba classes and rebounder trampoline class. I usually wear trainers, but footwear advice welcome! Any help would be amazing as I can't find much online!

Thank you so much!