I have been short of breath since my early 50s for no reason. After a terrible summer and early fall due to extreme shortness of breath I quit work as I could not take it anymore. My doctor sent me for a breathing test and methocoline which surprise, I failed. At the time it was all I could do to catch my breath, was light headed, breaking out in sweat. If there is good news to this it is I have mild COPD. My fear is if this is what mild feels like what does the future hold. I go mall walking from 1-5 km 4 times a week length depending on if I can catch my breath. It is winter here in Canada -5 to -12 and I am running around in tank top without my coat because if i get the least bit warm I can't breath and break out in sweat. My doctor does not seem to be at all concerned so I am thrilled to find this forum as I have learned more here in half hour than 10 visits to doctor. I know I am asking him a lot of questions next week and getting direction. Any assistance would be appreciated with questions to ask.