Yes that does happen a lot in the anxiety community but I think you should call your doc explain to him what you explained here.
Not to scare you or anything im sure its just anxiety but better safe than sorry I always say.

Im pretty sure this is anxiety cause if you go to the doc once and they check your heart and sey there is nothing wrong then I asure you there is nothing wrong its just anxiety cause iv been there done that many times lol anxiety can cause your whole world to turn upside down you can feel like anything with anxiety all kinds of things that you think are somthing sereus are acually nothing but anxiety ....

My whole body has been feelin really hot lately expecially in my face