Why do I wake up nightly in panic and heart racing?

This merits medical. Assessment. There can be a number of reasons for waking up feeling panicky such as sleep apnea, post traumatic stress disorder or panic disorder. If this is a common / chronic concurrence a sleep medicine consultation and sleep study are likely indicated.
Panic. The commonest cause of panic is panic attack disorder. Consult your doctor for diagnosis and treatment.

Related Questions

How to deal with nocturnal panic attacks? I wake up with my heart racing and feel as if I was going to have a heart attack.

Professional help. Your symptoms are severe and might affect your wellbeing and your functioning during the day. There are multiple approaches to treat panic attacks. I suggest you look for a Mental Health group to get a thorough evaluation and treatment. Read more...
MVP ? 24y female w. nocturnal tachycardia & panic attacks. Before symptoms are ascribed to psychology arena, first have general medical evaluation. Mitral valve prolapse to be considered. An echocardiogram can easily discern. Other symptoms of "depression, burning & insomnia" raise concern for fibromyalgia, which is associated w. Hypermobility Syndrome, which is associated with mitral valve prolapse. . Read more...

I feel VERY nervous. Heart racing. Feels worse when I sit down. Panic attack, or could it be because of not eating enough?

Test your guess. To test your hypothesis, try this: have an egg, a piece of toast lightly topped with jam (no butter), and 6 oz of high fiber cereal or steel cut oats (a nice balanced high protein, low calorie, refined carb meal) - and see how you feel! Read more...

Are these panic attacks? Running, screaming, babbling. No control of body. No memory of actions. Mind and heart racing. Thots that I am not real.

No. That would be a dissociative reaction due to the amnesia. A form of temporal lobe epilepsy should also be ruled out because of the babbling response. You need a full neurological workup and a dissociative disorders workup by specialist in dissociative dis. In hudson, they are:physician name specialty raghu v devabhaktuni md psychiatrist scot d machlus phd psychologist sheila deck spires phd psycho. Read more...
MAYBE, MAYBE NOT. Clerly problematic, but need more precision for diagnosis. You want to work with psychiatrist who is familiar with panic attack, dissociation, siezures. Careful diagnosis necessary to arrive at appropriate treatment. I've seen many pannic attacks, but they have been described somewhat differently. Do get to work on this now. Read more...