Since just after eating last night (a korma)I have had what feels like popcorn stuck in the back of my mouth/throat. Nothing helps. What can it be?

Cud b a minor injury. Some sharp ingredients in food cud injur the soft palate and back of throat while swallowing. It would feel like something is stuck there. But it should heal in 1-3 days. Other guess would be an allergic rxn to something in food. If no pain and just constricted feeling in the throat is there , you should be fine. Go for an exam if feelin persists. .