Breathing trouble

[ildinyo]

Hi. I am a 35-year-old non-smoker. About a year ago I had an episode when I felt that I coudn't quite fill my lungs properly. I kept having to take deep breaths. I saw my GP and he said that my blood oxygen saturation was fine. Since then I keep having these episodes but lately it has been accompanied by a feeling of tightness in my chest. However, I can do physical exercise and I regularly do.

Would anyone have any ideas what might be wrong with me?

Many thanks.

[aangg1]

Have you had an upper gi done? It could be asophigus problems.I have reflux and also have mine troat stretched.

[allmymarbles]

Do you have a touch of asthma?