Dianosised with CFS following 2 viral infections with mengisits type blood rash - October 2012, diagnosed april 2013 in hospital. Use to be bed bound but now recovering now back at work 2.5 days a week in a less physical job role Had winter of viruses and then had a summer with three diarhea bugs - now recovering again having been poorly. After diarhea took rehdration sachets and noticed how my muscle ache virtually disappeared and my fatigue improved. When stopped came back. Introduced salt with potassium (in discussion with doctor who said it would help blood pressure) and this has positively impacted other symtpons as well such as dizziness and nausea and my fatigue level. I have also responded positively to having ferritin tablets twice a day. I did have low blood pressure but this has now raised to 106 though I do use an awful lot of salt. On seeing the doctor today I raised whether O.I would be an issue due to feeling better with salt and potassium. He noted that on standing my blood pressure went up. So I suppose this does rule out O.I does it? Could it be to do with my blood volume. I suggested it could be low but he said there was no way of knowing what was normal for me. I do feel much better when I am laying down than when I stand and it is much harder to stand than it is to walk. What are people's thoughts? I am currently in the UK.