I have been treated since2001 for Mg. Briefly prior to that they said I had asthma. Mg was diagnosed and asthma treatment discontinued. I had chest infection over Xmas and was told I was asthmatic but mg also played up. I have now been properly tested for asthma using spirometry etc and told it is not present. My problem is that the reliever inhalers really help when mg causes breathing to be difficult and tight. Has anyone else experienced this?