Hi Sima. I read all the responses & especially liked Christina's. All really good suggestions.

The reason I decided to respond to your post is that I was diagnosed with chronic fatigue syndrome several years ago. I now have mood problems and some other health problems, but one of the things that particularly points to chronic fatigue syndrome is exercise intolerance.

I don't know if you do any kind of exercise regularly. If you do and don't have negative effects from it, then this probably doesn't apply to you.

Most people with chronic fatigue syndrome get delayed bad effects after exercise. You can do a weight-lifting routine one day and feel somewhat tired, but then the following day you'll crash and feel kind of achy and flu-ish. Nothing but rest seems to get rid of that feeling.

You mention that your pdoc doesn't know what's causing your fatigue. Maybe you can get a regular doc to check out some blood levels for you and see if they have any ideas.

If you go to a doctor and tell them you are fatigued, you usually have to be emphatic about it and give them specific examples of what you can't or don't do because of the fatigue.

Fatigue is such a common symptom and it varies from "kinda tired" to "this is ruining my life".

I hope you get some answers.