Brief Answer:
Yes you can get SVT from anxiety attack...
Detailed Answer:
Hi and thank you for asking!
Yes you can get SVT (supra ventricular tachycardia) from anxiety and panic attack. It's a well known fact that severe anxiety or a panic attack may trigger SVT.
It's a good thing that cardiac examinations were all within normal range, so you have nothing to worry about. I suggest to be relaxed even if HR is increased (above 150 per minute). As long as you have only PAC and PVC on holter monitor, you aren't on a life threatening situation.
If you were my patient i would suggest consulting a psychologist to treat anxiety and panic disorders. This will help to decrease the number and severity of SVT episodes. Moreover i would suggest to take low doses of beta blockers to help you control HR and the intensity of those SVT episodes.
Hope this was of help!
Dr. Benard