i recently started going to gym regularly (have always been irregular before!) and have built it up to about 6 times a week doing classes that are cardio and toning. i am an asthmatic and was advised years ago to always take two puffs of ventolin before any exercise, so i've been doing that. but the last few weeks i have been having chest pains - i feel that it might be because of the ventolin but i'm not sure.. is it okay to continue gymming?