I'll wave to sqad, he's always been/is being extremely helpful to me.
I was going to ask if you had had a lot of short illnesses in the last few months, tamaris, because I had chronic fatigue one year having started with illness 5th Nov.(antibiotics), then another followed almost immediately, then another and then another. By March it was hard work to think about getting up to fill the kettle.
It passed with the better weather and no infections.