> I had been taking very short breath right from my upper chest area. This was actually causing me pain. I learned to breath by expanding my abdomen and after forcefully breathing very slowly like that for 2 days, everything went back to normal. So there's a big tip for anybody reading this. I think it's called diaphragmatic breathing, Google it.

And the moderate version of the other way is called "shallow breathing" or "chest breathing". From what I understand it's actually really common but not very good for us, because it doesn't really expand the bottom of the lungs, so we're not getting as much breath as we should.