Hi, I have been using TR for few years and no complaints. But recently as my FTP went up and started to do Sustained Power (Build phase), I noticed that I begin to have some discomfort in my chest specifically when my heart rate goes very high (for me it’s 175+).
It is not something that makes me stop and I could tell it’s to do with my HR as I can feel my the artery pounding really hard near my right collar bone. It always comes towards the end of the interval so when I rest/stop it goes away.
I had an accident two years ago and broke this right bone. Could it be that the pain is coming from the lump caused by the broken (healed) bone?