I am sorry that you are having these problems and many of the symptoms you describe are the same as people with anxiety have.
Your Health Anxiety may be kicking you into these panic attacks.
Are you currently on any medications and do you have a therapist? Health Anxiety can be treated.
Do you live alone? Is there anyone you can call to come and be with you before you call 911? Sometimes having someone help calm you down will do wonders. It apprears that has happened on some of your trips to the ER. I believe you said after talking to the nurse all your symptoms went away before you even saw the physician.
Also, does your clinic or hospital have a nurse call line for after hours? You actually can talk to a nurse and get advice. :)
Keep posting and know your among friends here at Healing Well.
Moderator Anxiety ~ Panic Disorders
*~* Not a mental health professional at all *~*
Dx: Anxiety/Panic, Depression
"If you doubt you can accomplish something, then you can’t accomplish it. You have to have confidence in your ability, and then be tough enough to follow through.”