Hi Lisa
This is a very normal response with menopause and certainly can be quite distressing.
Please don’t feel guilty about it, as it’s not your fault at all, in fact I think you should not routinely be sent work things on a weekend and perhaps this is something you could mention next week.
You are not a failure, just menopausal and I’m sure if you explain this in whatever way you feel able, this will help establish a better work/life balance.
M xxx