Now I am having these heart palpitations which is something new. I have been checked for heart problems and was told that this is due to my anxiety. I am really frightened by this because it seems to come out of nowhere, even when I feel relaxed. Thank you for any help you can give me. The exact mechanism of action is not known but it is important to rule out a cardiac condition which has been done in your case.
Panic attacks can occur at any time which is characteristic for panic disorder.
I suggest that you have a psychiatric evaluation and treatment if needed. Please review the forums archives with the keyword panic attacks for further information. Remember this information is intended for general educational purposes only. Please consult your personal physician for specific health concerns. Only your physician can provide specific diagnoses and therapies.