I'm feeling great. I've been on cycle for since April 27. I've never felt better in the last 10 years. Even with TRT. I'm 40, D1 college football player, love the gym. My question is, is there anything to help me with more air, or O2 in my body. I've had sports induced asthma since I was a kid, I spend 45 min on an elliptical machine 3 times a week. 6 knee surgeries don't allow for a lot cardio, I average 5 miles in that time each day. I'm not a Kenyon, 6'4" 275. I do have an inhaler which I hate to use. Is there anything that will allow me to breath better. I travel every week and at different altitudes. Home is sea level, I'm at 6,000 feet this week and 3,000 in a few days. I spend more time in airplanes than any other place. Any advise is welcome, and thank you to those of you that made recommendations when I started.