Does anxiety cause rashes ?

for a while now , ive noticed that when im very anxious ill get rashes or red spots , usually on my chest and even face sometimes (my face will start getting very red. usually when im anxious , my heart races and ive noticed that everytime this happems my chest just gets red and so does my face (not always unless its that bad). this especially happens when i have a doctors appointment bc i always get high bp (simce im scared of hospitals ) and therefore that happens

i should add that as soon as i calm down, the rash / redness spots disappear . its weird bc even my doctors have asked me about that and dont know

I do experience like this! is this because of anxiety?