I was wondering if anyone was in the same situation or had an explanation for this. I do not suffer from post-physical exertion malaise, unless I push myself too much, however, I always suffer from post-mental-exertion malaise. That is, if I am under stress, or angry (for example today I got very upset at something my DH told me), I get a huge down following the short-term stressful event, including the following: - intense fatigue - feeling like my limbs are heavy and made of steel - wanting to go to sleep - nausea - pain in my legs - dizziness - brain fog It usually last for a day or so then gets better (I hope this time too, we'll see tomorrow). I had my adrenal checked and they are fine. Everything else is fine on my mainstream tests. I do not have a CFS diagnosis but I have a long history and depression, fatigue, irritable bowel and food sensitivities, and a child with autism. So, is there such a thing as post-mental-exertion malaise, and is it related to the usual CFS post-exterion malaise? Thanks.