Hi My Name Is Bazil Brown Age 55 Stil Surfing

hi my name is bazil brown age 55 stil surfing and asthmatic recently I just completed a ironman swim of 2k it took me 1 hour and 10 mins breaststroke... yesterday I went surfing with a friend over the coast and after every wave I caught I found I had to rest because of tightness and short of breath and then slowly paddle back out to the lineup. sometimes im good this doesn't feel I have asthma although I carry my inhaler with me in my wetsuit.. hardly use it.. it helps.. I feel fine after a surf... sometimes I think its something else.. and of course gettn older.