Good work getting out for a run. What made you do it? Were you sick of feeling trapped in your situation or did you want to try to run? Both can be good motivators and wanting to do something is powerful as personal empowerment is rewarding (Dave will know this is on the Changes 12 Steps he often mentions).
If a condition is affecting your lungs you would soon see it when running.
More positive stuff is coming through from you (meds, the run) which is good to see. Build on this.