It definitely sucks. I am going to the gym a lot, and the shortness of breath and stuff is going away fast. the main issue that I have overcome is stamina nad lung capacity. with the erg, I was pretty crappy at first. I wasn't breathing efficiency and ttherefore got exhausted quickly. In addition, when I was breathing correctly, my stamina was pretty weak, only allowing me to sustain a max of 5/8 of my full speed throughout the time trial.
the fact that I can now carry a bunch of pressure treated 16ft 2x4's without breakign a sweat isn't bad either😉