Thanks for your question on Health Care Magic.
I can understand your concern.
Pain on coughing,
sneezing, deep breathing etc is seen in
pleurisy (inflammation of pleura).
And most common cause for this is
lung infection.
So we should first rule out lung infection in your case.
So get done chest x ray first.
If chest x ray is normal then no need to worry for lung infection.
GERD (
gastroesophageal reflux disease) due to
hiatus hernia can also cause similar symptoms.
Along with drugs, you need to follow certain lifestyle modifications for better relief in hiatus hernia m
Avoid hot and spicy food. Avoid junk food. Avoid large meals, instead take frequent small meals. Go for walk after meals. Keep 2-3 pillows under head in the bed to prevent reflux.
Don't worry, you will be alright.
Hope I have solved your query. Wish you good health. Thanks.