Anxiety can present with these symptoms, but don't assume that it is anxiety. You need to have other causes ruled out first. Many on here have heart symptoms due to their anxiety but you must always rule out the heart first and foremost, if only to ease your mind. Take care.
I just posted something similar! I think mine may be medication related but it always happens right before or right after I fall asleep. I go into a full blown severe panic attack (I am guessing that is what it is). Do you take meds or have a history of panic disorder?