Back in January of 2013 you posted the following in a different thread, " get sporadic bouts of my heart beating very fast and very irregularly. Usually feels like the sound of corn popping. Last time I had a serious bout it started with almost fainting, and wheezing like there was fluid deep in my lungs. I had to crawl to my supervisor's desk in the next cubicle to get her to call 911; I couldn't get up off the floor. I usually can't when this happens, and I usually have trouble breathing as well."
I agree with you that your episodes are extremely dramatic if this is still happening. If you are having these kinds of attack where you need emergency assistance it would be most wise of you to see a cardiologist regularly until an appropriate treatment plan has been devised and your PSVT is well controlled.
I really do not think your employer would want you nearly unconscious at your place of employment so please do seek the care of a physician.
I wish you peace.