Your description doesn't fit me at all. That's why I kept thinking I must just be unfit - I was never the really active type. I could sit for hours staring into space, although that's more to do with my mental health problems (Aspergers and depression). I enjoyed exercise when I did it but wasn't terribly motivated. My brain, however, is ridiculously overactive, it never shuts up, it drives me crazy. I'm an intelligent person, my brain is the only thing I like about myself, so I think that is my biggest worry. I wouldn't mind being still if I could fill my rest time with books and learning, but I can't even do that right now. Emailed my OU tutor to update her and ask for a longer extension on my assignment - don't even know the question yet.
I guess my previous lifestyle makes it a bit easier for me to rest now and if it was relevant my logical brain would probably enjoy something like Graded Exercise (jumping the gun massively I know, I'm just musing really). I don't think I would be in denial though I can see why as a naturally active person you would find it impossible to accept :(
I am worried about work because that is the one place where I am active. I am really efficient (helped again by my need for logic) and am always the first to volunteer for extra tasks. I'm a different person there. DH went in there the other day and although they are really well staffed, one of my colleagues told him they are really feeling my absence because I'm a "do-er"! Couldn't believe anyone would ever call me that, it really shows the difference between Home Me and Work Me. I was certainly ill before starting work but I wonder if this has made it worse. I would hate to be at work without being the fast worker I usually am. I am paranoid enough without worrying about not doing enough work. I guess that is why I really want a phased return/amended duties.
Feel horrible this morning, I stayed up until midnight to take my cortisol tablet, but ended up only getting 2.5hrs sleep. My sleep gets really fucked up sometimes, it's not like when I was younger and it was pretty much my own fault for getting into bad habits - it's my heart, it flutters and pounds in my chest and it hurts. When that happens I know there's nothing I can do. I try and practise good 'sleep hygiene', I don't even have any caffeine in the house. Really frustrating. I think yesterday my mistake was sleeping in the day - only about 45mins as DH persuaded me to have a rest and I eventually dozed off. Guess I can't do that any more then.
Small question - can pregnancy/birth be a trigger for CFS, in the same way it often starts with a virus? I've been looking back over the last few years, it's difficult as it's foggy. If CFS does end up being the diagnosis I guess I can ask to look through my medical records? I feel like I need to know how it started. I remember having no energy once my second was born. I could barely lift him - admittedly he was huge (nearly 12lbs at birth - I may have developed gestational diabetes but there's no way of knowing for sure) but still only the size of an older baby and I had no trouble with DD at that weight. I hardly managed the sling at all and things like kneeling by the bath or bending over to change his nappy were intolerable. I just put it down to breastfeeding and having 2 children to deal with, and again, blamed myself for being unfit, but now I'm unsure if it was the start of this problem as like work I never got used to it.
I hate all the uncertainty. Glad I get the work meeting over with today. You're right about the blood tests, I will try and forget about them once I've had them in 2 hours time. It is hard though as I have no energy to distract myself! I have 12 days before I'm supposed to be at work and it still feels like nothing even though the last couple of days have been a bit better.
How do you actually rest properly? I read on an older thread that things like watching TV don't count. That's what I find difficult - I can rest physically but my brain does not cope without something to do - but then even reading wears me out. 
Sorry, mammoth post.
Hope everyone is as ok as they can be xx