Tach during sleep nightly, shaky, shivering, nervous feeling in chest, headache. wakes me up. go to emerg, attack over. what doc should i see?

Primary Care/Psych: If you had an evaluation in the ER and there was no cardiac problems, I would start with your Primary Care Physician. He/She can screen for metabolic problems that can cause these symptoms. If they keep happening and your tests are negative, they may be panic attacks which may lead to a Psychiatric referral. A good therapist may also be able to teach you some techniques to deal with panic attack