Trying to help a friend...she has periodic sudden onset of chest pressure and bilateral arm weakness and unable to lift arms for up to 5 minutes. Someone mentioned T4 syndrome. So I will start with that thought. Her history corresponds with another forum of over a hundred people with similar symptoms (2006 - 1015) so I know this is not a psych issue. All others have had negative cardiac work-ups, neurology consults and some orthopedic consults. If no one has heard of this, I will try the neck forum.