For 30 days. I have attached to me a small, very small, Holter monitor, aka event monitor, aka ambulatory electrocardiograph. Two removable/changeable electrodes are attached to my right shoulder and left lower rib cage with wires running down to the tiny device on my belt. It will record two minutes, the one prior and one minute after I press the record button, any time I'm experiencing an arrhythmia. It is very small, I can take it off for showering, it takes one AAA battery and clips on my belt like a pager. It is rather an interesting device and I'm told to take full advantage of the 30 day test since the insurance covers it. I'm to not only record arrhythmias, but times at rest, after doing exercise or walking. I'm to drink the caffeine, as its purpose is to record the problem, if caffeine is a genuine trigger, to drink it. The information recorded gets transmitted back to the doctor's office over the phone. I record something, then call in and hold the device up to the receiver where it plays back in high pitched beeps the EKG. It can hold up to three recordings before I need to call them in. The only problem, we have no land line at the house, they ask not to transmit back the data over a cell phone. I'm going to have to do that at work or at a pay phone if I'm out. The idea is to figure out what exactly is going on and why. I'm told this sort of problem is fairly common and nothing to be worried about, but it sure is disconcerting when it happens. You never notice your own breathing or heart beating until it's doing something out of the ordinary. It's startling. I was asked, 'Do you ever try to take your pulse when this happens?' mimicking the action I reply, 'I have my hands pressed to my chest trying to feel what's going on, to make sure my heart is still beating!' Disconcerting is too mild a word for it. I used it once already today. Although it may have been 'white coat syndrome' combined with rushing to get to work. I did not call it in yet, since I have convinced myself I was imagining it.