Anyone know what could be causing these? I used to think it was my anxiety, but I've gotten a control on that and my whole body at times seems to pulsate and when I hold my hands out, 1 or more of my fingers shake and my whole hand shakes... I can't keep it still even if I try... I've felt this in my legs also.. other feelings are anxiety out of nowhere, horrible back pains, muscle twitching, joint aches, muscle aches, I have gastroparesis (slow gastric emptying) and sinus arrhythmia (mainly tachycardia). I've been to a cardio and had a nuclear stress and echo, and he says my heart is not damaged.. though I do have some abnormalities in my EKG's... I've been to a gastroenterologist, had a EGD done and no ulcers or other stomach problems.. just slow emptying and alot of belching... could this be a neurological problem? I've had thyroid tests also, no sign of a difference. Or does it sound more psychosomatic? I have had panic attacks but that was when I was having this unexplained anxiety. I've also had them in the night where I would be having a bad dream and wake up with my heart racing and not being able to calm down for awhile. It first started out of the blue one night when I woke up feeling panicked and had to use the restroom... I then couldn't calm down for about 2 hours before I fell back to sleep. Other symptoms that have come about are my hands, feet, and nose get FREEZING cold at times.. no cyanosis like raynaud's.. but very white and very cold. Also I get strange tingling sensations in my feet and chest... I've also lost about 24 lbs in less than 2 months... some do to diet changes, ie no more soda, no alcohol, and eating less for awhile due to gastroparesis... but some I can't explained. I also had a CT of abdomen and pelvis which showed everything ok. I guess what worries me the most is the out of it feeling, the feeling like I'm going to just collapse out of fatigue sometimes, and the tremors which do not seem to be only from anxiety... when I get out of it feeling, lying down and resting, watching TV seems to help sometimes... any input would be greatly appreciated.