That's alittle list you have going on there. Doctor will want to know when you experience these problems individually or are they all together.
Chest pains - short and often nothing that lingers very long - I would say stress
Pulse in the neck - at least you have one - again stress or possible blood pressure issues.
Shortness of breath
- stress anxiety
My guess is a good does of Xanax
(now in generic form) to ease a few of the other pressures you are feeling with a possible Antidepressant - again not sure what else is going on in your life to make you have these feelings.
Good luck -