Your uvula is meant to touch your tongue when the mouth is closed.  What you are describing is the foreign-body sensation that occurs secondary to GERD or acidity. Continue the anti-acidity treatment. Avoid hot spicy and oily foods. Reduce tea and coffee. Don't lie down or bend down immediately after eating. Have smaller, more frequent meals rather than a single large meal. I hope you don't smoke or use tobacco products, paan, masala etc.