Hi there ~
I understand that you had a terrible night that you can remember very vividly. With all the stress
going on in your life it is not impossible to understand that you had a sleep problem this last night. We call it nightmares
. Palpitations are mostly due to stress. However you should consult with a cardiologist before taking the expert advise of a psychiatrist
who is most certainly the one to treat your problem. I hope this helps. Also doing regular exercise, maintaining a schedule, doing yoga
, pranayama helps with the process of panic attacks.
Take care and have a good day !