Im 29 Years Old , Female . For The Past

Im 29 years old , female .
For the past few days, I've been yawning a lot, much more than average (once every few minutes I feel the need). If I'm not yawning I'm breathing in as deep as I can to get similar "satisfaction". Often I cannot get the "satisfaction" from these and so the urge grows and grows, meaning it can get quite uncomfortable. When I do manage it, the urge is back a few seconds later. This is whether I'm tired or not, almost all day.
I'm not particularly anxious about anything in particular, and get the same amount of sleep as before this started.
This also happened at some point within the past year which continued for a month or two if I remember correctly.
Its just came back four days ago. Last year I was diagnosed of acid reflux , so I thought it was just the same , I am taking omperazole now but i dont thinks it works for me. Last week I was rushed to the hospital due to severe abdominal pain, I got a abdominal ultrasound and the result is I have a 1cm gallstone . Thank You, hope you can help me, currently I dont feel any pain in my abdomen but I having trouble with breathing.