Time to bust your cycle. Change your routine, do something different, etc.

I am not a doctor... but...
Here are the questions a doctor will ask:-
Firstly, we need to work out if it's psychological or physiological.
Does it get better with activity or worse? Does it get better with rest or worse? If it gets better with activity and worse with rest, then it is probably psychological, the inverse implies physiological.

Physiological:-
First off, I'd examine your pulse. Check for shortness of breath. Anaemia is a very common cause for fatigue, and a fast pulse, pale skin and shortness of breath are the most obvious symptoms.

Diet is the next thing to check, iron and vitamin B12 deficiencies present as a chronic fatigue, as does mere malnutrition (did you forget to eat?) a blood check for iron-anaemia takes just a couple of minutes.

They'd probably want to take a full alcohol & drug history, in case anything you're on or have taken would have fatigue as a side effect.

Carbon monoxide poisoning might be a care, so they'd check you've got a detector and if anyone you live with is experiencing similar symptoms? Try opening the windows etc. and see if you feel better.

Any unrelated symptoms, vomiting, diarrhea? blurred vision? These would suggest something more severe and in need of immediate attention.

A physical examination of the glands beneath the jaw and along the neck would also probably be a good idea after all you could just have a dose of the flu. Which would suck but also make you knackered.

If it's psychological, then chronic depression is the most likely cause. Fatigue accompanies depression in almost all cases. In which case the usual treatments for depression are your first order of business.

It's probably not lupus ^_^

For a while I had a similar problem where I would come home and fall asleep until I was late for work the following day. It turned out that I was lactose intolerant, and that milk has a super-soporific effect on me.

Edited at 2007-11-25 03:42 pm (UTC)

Theeighth covered quite a bit, but I'd like to suggest having a good chat with a gyno as well. Female hormones are almost always in flux but as we mature they can occasionally take a trip to wonkyville without our permission. Sounds trite but just a tad too much testosterone in the mix can have you sprouting hair in odd places and punching strangers for no reason. If your thyroid is affected by too much estrogen which affects your T2 and T3 levels you can become tired, exhibit symptoms of depression, lose your hair and a host of other fun things.

Also, have you tried changing your pillow? Not because of cleanliness issues but because your comfort needs may have changed. A good example is that for me a standard pillow is good for things other than sleeping. I use either a contoured pillow with more neck support or a neck roll. The lack of either of these pillows means I won't sleep well which can set off insomnia for days.

Whatever may be going on you know that you are in my thoughts and prayers.

Work and play in bed and put a pillow on your keyboard... Who said one had to sleep in bed anyway :-)... But first try solutions A, B and C in the comments... Solution E : come to Paris! smile