Thank you girls. I have reached out to the other person diagnosed with metaplastic. I would never have found her on my own, as I am still struggling with this site.
As to covid, I have found the three doctors I've asked rather "relaxed" about it. I leave the house only for medical appointments (and next week to get my hair cut short), and family and friends must have a negative RAT to visit. Having been in virtual lockdown for three years (yes, the year before covid as well) I wonder whether I'm perhaps too pernickety.
