Does anyone experience this?- I wake up drenched in sweat and feel butterflies in my stomach. I try to calm down but nothing works and sometimes I will have to use the bathroom with urgency with the bowels affected rather like you might before a dental appointment you were dreading. This improves during the day so may well be linked to cortisol as it is known that ME sufferers are also low in this hormone. Does anyone experience these symptoms and are they related to the orthostatic intolerance? I was suffering badly with that yesterday when out shopping and this morning had the above situation I described. I am not like this everyday- just when my symptoms are flaring and sometimes I am dizzy too in the morning. Being 52 and peri-menopausal may be a factor though I have had the above symptoms for years. Can anyone tell me if they recognise this morning pattern?