It is possible that patients with hiatus hernia get symptoms of asthma. This is because the sphincter at the junction of the food pipe with the stomach becomes incompetent thus allowing the stomach acid to regurgitate back into the gullet and from there in to the respiratory tract. There are several tests which are available which would show whether you have this reflux. In case reflux is proved you have a choice of first trying out good medical treatment for 3-6 months. If it does not work, the problem can be dealt with by minimally invasive surgery. There are endoscopic procedures for dealing with this but by and large they are not that effective. Your renal calculus has no bearing on treatment of this condition. I suggest you consult a good gastroenterologist in your town.