Thank you all hollie , godhelpusall , moomin and Tiddletaddletat for the kind words, and I hope I did not miss anyone. It is so hard and yes, let’s hope for a better day tomorrow.
I think maybe you are right Tiddle about thinking about it as a relapse, I had been thinking this last couple of days that I am just not going to get better.
In terms of what causes them, I do not know. I started to do some work last week, but only a couple of hours in the morning and then I was so exhausted in the afternoons I was back to falling asleep on the sofa. I was finding it really painful in my chest and back to sit at my computer and today I could not find anyway comfortable to sit or lie at all.
Interesting you say that about your period, and iron TheWooisstrong as I was wondering about anaemia. I took some iron after I posted earlier and will make sure to do that every day. I am taking a multi-vitamin and D3.
Okay, bed. I wish you all a good night and thank you truly for the kind words 