Katherine I am with you in peri and huge life stress levels having such a negative impact on our physical and mental health. I have been a mental wreck much of this year.
I am in the process of investigations for chronic exhaustion, joint pain and muscle weakness. My two hour fast walks of last year are replaced by a 20 minute plod and that's only on a good day. My gp says the ME I had 30+ years ago has flared up again. Am due an appt with an ME clinic soon.But I try to listen to my body, be active when I can,rest as much as I need to. Am fortunate my life allows me to do this. But to be honest, it's absolutely horrible.
As much as you can, won't be things that make you happy, and rest as you need to. Maybe see it as a time to heal. Xx