Female, 56, for years have trouble breathing tightness in chest diagnosed as asthma maybe but wonder. This year has been very hard; hurts to breathe, lump in throat feeling, inhaler kind of helps but not much, this comes and goes but occurs several times a day -- often worse after eating, or being active -- tried to take a simple walk yesterday on level ground and had to stop -- get "pins and needles" feeling off and on in fingers, lips and toes -- when I do the breathing test they say it's normal or nothing to worry about -- when I did a stress test on a treadmill I had to stop the faster it got couldn't breathe, nitrate pill stopped it immediately but they said my heart looked good -- it is NOT panic attacks --