Chest pain. To know all doctor opinion?

I am having chest pain and burp for 5 months Doctor says I have gerd but some doctors say this chest pain may be due to stress , depression etc . The pain in my chest increase if I try to converge my chest. It increases with milk products. But the pain is always 24 hours . Food does not regularly come to throat . Only few times a week. My question is can depression really be causing non stop chest pain ? Which department can solve this gastrology or psychiatry. (I am already seeing psychiatrist) I am confused. The pain in chest  increases with neck specific neck movements. I have already seen 5-6 doctors on practo and visit. Medicine department doctor says there are chance of psychiatry. Gastrology department one of doctor says it could be orthopaedic department. Also my ecg is normal also chest hrct is completely normal too. Please 🙏 help me. I want to know all doctor opinion ?