[Parables]

Great question. While I don't know the answer if I may tack on a supplemental question that hopefully can be answered in one swoop with yours. When you say (pain/urge to breath) is that a burning pain in your chest. When I hit 50m I get a pain in my chest with a firery burning feeling. Can I plow through this? Or is this a sign of something bad. My warm up is comparable to yours but much less involved. I need to make it more like yours it seems. Thanks for the post. Look forward to the replies.