Thank you for the query.
Your symptoms can be caused by hiatal hernia
indeed. Please note that if the symptoms can not be controlled with medicines, surgery is advisable (can be done laparoscopically). But before the surgery, you should get proper diagnostics. Gastroscopy should be done to check for possible H.Pylori infection and peptic ulcer
You should also consult pulmunologist and have spirometry
done. It is because acid reflux
issues are very often associated with asthma which can cause your breathing problems.
Hope this will help.