Re: chest feeling icy cold
This could be due to the fact that when we are anxious the blood from your extremities is diverted for action, especially from the stomach, hence 'butterflies in the stomach' there may also be goosebumps.
None of this is life threatening, just a bit uncomfortable at the time.
when you get this try deep breathing, all the way in and out but 'sigh' on the out breathe (natures calmer downer) also think of your fave place and put your fave music to it, your mind will soon learn a new pattern!!