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.
Ulcers can only be diagnosed by endoscopy
not by ulcers.
Although barium swallow x ray may help but exact diagnosis can be made by endoscopy .
You should consult with internal medicine specialist/ gastroenterologist and should go for thorough check up.
You should also go for complete blood count
profile, blood sugar, serum electrolytes.
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