This patient's age and background information suggest that his symptoms are probably not going to be due to significant coronary disease. This is helpful because CAD is always a major concern in anyone with his type of "spell."
He drinks a little more than average and this is not uncommon in patients with panic attacks.
The three most common causes of palpitation in an otherwise healthy young person are: Panic, SVT, and Multiple Premature Beats. Keep this in mind as you proceed.