I enjoy cycling, I can easily clock up around 200+ miles a week. On my turbo trainer in the garage, if I do a hard session i.e. intervals where my heart rate can be between 140-180 my breathing is fine, and the same on the road.
I've done a few training sessions with the race team where we go hard where I couldn't catch my breath nor would my asthma settle down afterwards even when taking it slower. Even though my heart rate and effort would be in the same range.
Last night I was doing a very easy session my HR was around 70% or so, yet I was feeling breathless, like I couldn't catch my breath no wheeze or anything. Usually my asthma is well controlled even throughout hay fever season I've taken hay fever stuff since March as that's when I always start and finish around Sept.
Any had anything similar or any thoughts?