I have identical symptoms with chest pain, nausea, palpitations, sharp pains along the left side... along with tingling/numbness in my left arm, etc. It panicked me enough to go to the ER a few times and get checked out. Even took an ambulance ride once, but even the paramedics were confused because it didn't seem like just anxiety... That day, all day long I had chest pains, and had to take a friend to work that evening. While driving I began having a hard time breathing and the pain got worse, well, it got very bad to be honest. There was a pharmacy close by so I stopped to grab some asprin. As my luck would have it, I had to wait in line behind someone counting out change and taking their sweet time. The cashier said I looked in serious distress - she asked if I was ok, I told her I wasn't sure because my chest was hurting bad. The lady counting change said I looked pale and that's what happened to her husband when he had a heart attack. The cashier called 911, paramedics arrive and check my bp, 180/115 and pulse was 140. Now, I've ran my pulse into the mid 200's, but that was while working out. 140 for doing nothing but drive a car? yea... The paramedics put me on o2 and gave me a spray of nitroglycerin to bring my bp down, which it did after 10 mins. The medic said he felt that I had a cardiac event, but the symptoms were mixed and he wasn't sure, so he recommended a trip to the ER. The hospital ran EKG's and blood work, did a full checkup and monitored me for a few hours, ended up releasing me stating I had heart palpitations.
Looking back, I view the events that day as an example of runaway anxiety. I didn't allow myself to calm down, and admit that I had stayed very busy all day long. Of course, being in full blown denial of anxiety at the time didn't help either. I had a similar, but less intense event a few weeks later and eventually visited a cardiologist who gave my ticker a clean bill of health - and suggested, like the other doctors, that I had anxiety.