Is this normal? While burping. pls help!

I don't experience any pain while gulping/swallowing but I don't understand why I feel a sensation for a second while eating or drinking and even while occasional burping in my upper middle back. Since childhood, I never had any chronic gastric issue apart from basic episodes of acidic burps after eating out. few months ago I was treated with acid reflux when I had some heartburn due to my irregular meal timing and eating restaurant food during covid time as i was staying alone. That was cured in a week with meds and since then I never faced any major gastric issues but only mild acidic burps when eating out. I dont even eat out now and no major symptoms of acid reflux or gerd but then why do I feel this weird sensation in my back. its not bothering me but i feel weird sometimes. I don't experience any pain or symptoms of dysphagia but just a weird sensation like the food is going down my esophagus and also I feel that a part in my middle back is contracting while burping. pls help