I get feelings of like needles stabbing through my shoulder knees and behind my ears (going into my head). Is that normal during a panic attack?

Suffer with panic attacks and just looking for some techniques to help alleviate symptoms of a panic attack. Any suggestions helpful

I had a severe anxiety/panic attack today. The panic attack lasted about eight hours but was only extremely bad for about 1 hour. Ever since then, I haven’t felt like myself and I still feel nauseous when I even think about eating food. I am also having a very hard time falling asleep. Is it normal for panic attack symptoms to last this long? What is the reason for these problems?

As you might have guessed, I have anxiety and eating disorders. I’d imagine that I’m burning calories while I have a panic attack. My heart goes racing and my breathing gets heavy. What do you think? Am I burning any calories?