About 6 months ago I started having panic attacks due to my psych doc cold turkeying me off of Vyvanse (stimulant for ADHD). Actually saying panic attacks isn't quite accurate, it was more like one never ending panic episode 24 hours a day for nearly 2 months. It was so bad I lost nearly 40 lbs, that is very bad for 2 months.
Anywho, towards the end of this time period my panic attacks had begun to subside to 1-3 a day but EVERY night I would be awoken with a nocturnal panic attack. It was very frustrating. They finally stopped when I began my current medication regiment but they are very unsettling. At the time I was also taking a medication that was an Alpha antagonist. First Olanzapine then Quetiapine (both antipsychotics, prescribed to me for insomnia and anxiety, would not recommend either one unless you are desperate).
Have you talked to your doctor about them? I have heard a medication called clonidine taken at bedtime can reduce, or in some cases, eliminate nocturnal panic attacks. Also, have you been checked for sleep apnea? I've read sleep apnea can cause nocturnal panic attacks as well.
Just read this and wanted you to know I am right here with you. Problem for me is, I get up in the mornings after being in full "flight and fight" mode and the rest of my day feels like a rollercoaster going through my central nervous system. Are you currently on mediciation? Just curious.