It is great you did go to the class and are willing to come back.
It may be harder for you due to your stroke and the asthma but when I was 30, I was completely out of shape. My brother encouraged me to go on the bicycle with him on a almost flat path and after a 10-minute ride (the trip was gonna be 1 hour), I just could not follow his pace and decided to come back to the house. I was exhausted!
When you have not been training for years this is what happens. The good thing is that your condition improves quick, at least to a certain point, and it will be way better than today for sure.
Happy for you!
How is your fitness now? You ride a lot if I remember, so I am guessing that at least that part has improved.
A month of 3 classes a week, and I think it would make a big difference. Perhaps I should give it a go :)
I've been "buried" by the work at the farm in Portugal during all the summer and have not been on the bicycle more than five or six times. I hope I can go back to cycling during this winter but still need another trip to finish the house
That work is worth it though :)