Im training for my first triathlon on 9th April. And everything is on schedule except the swimming. My issue is not in technique or speed, Im fortunate in having a former national and international swimmer for a girlfriend. But, I do have a problem. After 50 to 100m, it varies, I have to stop as feel hugely out of breath and like my heart is trying to hammer it way out my chest. However I use a Suunto Ambit 3 for monitoring my swim and when I check the data my heart rate is in the low to mid zone 1 for me (using 3 zones) and my respiration rate is pretty constant around 23 bpm. The data doesn't match how Im physically feeling. The suggestion has been made that Im suffering some kind of anxiety attack type issue after a certain distance. Im wondering if folk with more experience than me can shed any light on this or how I can solve it?
I will try your advice. Sounds like you have hit the proverbial nail on the head. Thanks very much. I will Let you know how I get on.