Thanks for posting your query.
With the available described symptoms, there appears to be possibility of peptic ulcer disease
Past history of GERD with present symptoms suggests the diagnosis.
Respiratory difficulty could be due to persistent irritation in throat caused by acid reflux
You should consult with internal medicine specialist/ gastroenterologist and should go for thorough check up.
You should also go for complete blood count
, thyroid profile, blood sugar, serum electrolytes and chest x ray.
Clinical examination makes clear about the status of lung pathology.
You should also go for endoscopy
with biopsy and urea breathe test for H. pylori bacteria; a culprit agent for peptic ulcer disease.
Meanwhile, you should take proton pump
inhibitors along with prokinetics.
You should avoid tomatoes, citrus fruits. tea, coffee, oily and spicy food.
Dr. Mayank Bhargava