Thanks for your question.
Since you have been investigated by your doctors, most probably your symptoms are due to gastroesophageal reflux disease. Basically along with medications you need changes in your lifestyle. Lifestyle changes recommended are:Elevating head of bed, Avoid lying down soon after meals,Avoid stooping, bending, and tight-fitting garments,Losing weight,Stop smoking and alcohol intake (if smoking).
You also need to avoid foods (such as spicy and fatty foods, citrus, chocolate, peppermint, onions) that make your symptoms worse. Avoiding coffee and tea or any other drink containing caffeine is also beneficial. Increased stress can make the symptoms worse. Hence meditation and relaxation techniques, in addition to counseling may also be beneficial.
I would also suggest a referral to a Gastrointestinal specialist who can confirm this diagnosis, since omeprazole is not beneficial in your case. You might require an endoscopic examination since you are having symptoms despite treatment. The white lesions could be due to GERD but could also be due to candidial infection which is a common fungal infection. Infectious esophagitis could also present with reflux symptoms and an endoscopic examination is beneficial. However infectious esophagitis is unlikely since you chest pain occur after drinking alcohol. The other investigation that I would recommend is an ultrasound scan of your abdomen to look for any gallbladder conditions which can present with chest pain, which may steady or intermittent, and may radiate to the back or the right shoulder.
Presently I would recommend that you take 40 mg of omeprazole once daily for 8 weeks, which is shown to be beneficial when this condition is refractory to other treatment.
If I have answered your question, please click the ACCEPT button so I can get credit for my work. POSITIVE feedback & a BONUS are warmly appreciated.