Hi, i woke up with a tight chest about 2 hrs ago. the tightness was across the top part of my chest but has abated now. my feet and hands are still bit cold. what should i do?

Chest tightness: If the chest discomfort awakened you, and especially if there were associated symptoms of sweats,nausea,shortness of breath,arm discomfort, a cardiac event would be suspected and you should be evaluated in the hospital emergency room. Even without these classic symptoms, I recommend getting checked as soon as possible for peace of mind.