Hello, my doctor & cardiologist think I have SVT due to the episodes of racing heart, breathlessness and strange sensations like vibrations. These episodes are very distressing, especially as over & over again by the time I get a monitor on it s too late as the episode has passed. They say I can t have treatment until an episode can be caught on a monitor but I only had one lent to me for 48 hrs when nothing happened so now nothing is being done for me even though this is happening more frequently and I m getting more breathless with each one which is very frightening. Is there anything I can do? I find ice and cold water help a bit and carry them around with me at all times. Thank you.