Just wondering if people have experienced this. I have a really hard time with prolonged standing activities resulting in panic attack with shaky legs, sweaty palms, high heart rate and fear of passing out. I usually feel better when sitting. I have never passed out. I am also exhausted all the time. My heart checked out fine and my labs are perfect. I am pretty much exhausted at all times. I do take blood pressure meds but my blood pressure tends to run on the higher side ( especially with all this anxiety). I am trying to stay somewhat active but it usually leads to me feeling worse. Any ideas? I think this is my worst symptom since I used to be such an active person.