Have you asked your GP to check your cortisol levels?
I haven't. It will cost money that we can't spare at the moment for anything other than a medical emergency.
Although I suspect my cortisol levels may be a bit low, I don't think it's bad enough to be worth treating, and I'm reducing my inhaled steroids back towards normal now. I went down from 1000mcg to 750mcg a day at the weekend, and as long as my peak flow stays stable on that, I'll reduce it back to my normal maintenance level of 500mcg in another 10 days. (The only reason I asked the doctor for the 250mcg inhaler was because I get more of the drug where it's supposed to be that way than by taking several puffs of the lower dose inhalers I can buy over the counter. Presumably, that also minimises side effects because less is getting into your bloodstream.)
My sleep is always disturbed because I wake up every time Sam moves. It's been that way for over a year, so I can't blame it for my current tiredness. (Actually, I'm getting more sleep now than I was a month ago because our neighbours are back in their normal routine, and not disturbing him by making a racket for half the night like they were over Christmas.)
I do eat little and often. Possibly not so much of the little, but definitely often. My breakfast is loaded with protein and fibre, so I generally don't eat much else in the morning other than my post-ride snack, but the afternoon is punctuated more by the gaps between the snacks than the snacks themselves! I don't eat a great deal of nuts and seeds. We don't have nuts in our meals because my OH has a (relatively mild) nut allergy, so I may get some for snacks - if I can find any that haven't been fried in olive oil and then covered in salt, which seems to be the norm here.
Protein - get some more of that in you. Milk also. If you are regularly 'hitting the wall' then this does indeed sounds like you aren't eating enough. You shouldn't be exhausted.
Sorry, fossy, I missed this earlier. I'm already having 90-100g protein most days, which is around 2g per 1kg bodyweight. Do you think I should increase it further? I can't have milk because I'm intolerant to milk protein, but I have soya as my "base" protein, and try to have lots of green, leafy veg, beans and wholegrains to try and make sure I get all the essential proteins. (I'm vegetarian, so don't get protein from meat or fish.)
Be very careful if you drop too low on your body fat %. My brothers ex was a fitness fanatic who over trained and lost huge amounts of weight. She also ended up destroying her immune system and was hospitalized for 6 months as a result.
Yes, I think I do need to gain weight. My immune system isn't very strong at the best of times - if there's something going round, I'll catch it - and I can't afford to be ill and incapacitated.
I weighed 7st2 this morning, which I'm aware is a daily fluctuation rather than a sign that I've lost 1lb of fat since yesterday. I've been hovering mostly around the 7st2/7st3 mark for the last couple of weeks, so I think that's about where my "real" weight is at the moment.