Thank you for the query.
I have gone through your query and understood your concerns. The pain you have mentioned suggests about indigestion
problem at first because it is even relieved by taking antacids. Increased acid secretions will travel through esophagus
and gives rise to heart burn and when it travels up some times it will also travel under the armpit causing such type of pain and it will get resolved soon. If you were my patient I will advice you to take tab.pantaprazole 40mg od in the morning for atleast 10 days to see some difference and as it is a prescription drug you need to consult your treating doctor to confirm the diagnosis and also ruling out of neuropathy is also important in this case. Hope this answers your query. Thank you.