Hi @Former-Member, welcome to the forums. The symptoms you describe sound frightening, and frankly, should be a concern for any reputable GP. I am hoping your Dr has ruled out all serious physical causes before writing it off as 'psychological' (or in other words - irrelevant, to them). Anxiety / panic attacks can even look like heart attacks. Nausea maybe not so serious, but chest pains? Have it checked. Depending on your risk factors (age, smoke, weight, stress etc) it may or may not be serious.
Yes, i get a lot of this too, its been investigated as I have a lot of high risk factors, but results benign, date. One thing that helps me is relaxation exercises - in particular DEEP SLOW DIAPHRAGM BREATHING, a few times a day, when ya think of it, breathe and flop your body, just for a min or two, and particularly when the stress hits your chest like that.
If ever your breathing is affected - you need to ring -13HEALTH- for assessment or see a Dr asap.
Another thing is to try, grab some antacid tabs from chemist - if they work duringvone of these episodes - you probably have acid reflux and need to adjust your diet etc
Hope this helps xox