Hi and welcome to Healthcare Magic. Thanks for your question...
can manifest itself with a variety of physical symptoms, including cold
/ hot sensations, muscle tightness, etc. So, it is quite possible that these new symptoms could be related to your panic attacks, especially since you say that they preceed the attacks. However, if you are very concerned about them, then you can get an ECG done to rule out any cardiac causes.
Wish you all the best.
- Dr. Jonas Sundarakumar