For the last few weeks, I've felt the urge to take a deep breath and sigh every few minutes. The deep breath is very satisfying when I take it.
I'm wondering what the cause for this could be.
A few details:
I'm a 39 year old male, nonsmoker and generally healthy. I have no known allergies, and no history of asthma (though my daughter was recently diagnosed as having relatively mild asthma).
In the last few years I haven't been getting nearly enough exercise, but I recently started myself on a jogging program to rectify this.
One of the odd things is that I don't feel particularly out of breath when I'm exercising. In other words, when I go jogging and my respiration rate goes up, this urge seems to go away.