Just finished my usual Sunday morning ride and experienced something that never happened before. Midway on the 23 mile route after climbing a short hill on my single speed, I found that I couldn't take a long deep breath but only short shallow ones. It was a bit worrisome to say the least. At the rest stop I was able to regain my normal breathing. I fancy myself in good shape for someone who's 66, exercising daily. I recently lost 40 lbs. and feel pretty good but this was a step back. After pushing myself on the first half of the ride, I took it easy on the way back. Perhaps I didn't prepare well having only a large mug of coffee and a glass of juice before the ride but can't help but wonder if this was a symptom of something more serious. I passed my last physical with flying colors.
Anyone experience a similar event?