My Nanna, who’d been agoraphobic for over 20 years, told me if I was ill (for longer than a day, but with a cold or some such) I should walk around the block. I’ve ignored that advice sometimes and realised it does spike my anxiety. Your world can shrink so quickly. I wish she was still here so
I could say “I get it!”
What have you heard in the past (that maybe you scorned!) that you now understand?