Hello, doctor. i was eating sunflower about a week ago. i think it stuck there, i've been feeling something there while swallowing, it still continues?

Seek help: If that sensation persists through continued eating and drinking, you should seek an evaluation. You may have damaged some of the tissue in the back of your throat/food pipe or have some sunflower seeds stuck or even a diverticulum(pouch) around the top of your food pipe(esophagus). If you start having problems swallowing particularly your secretions, you should seek help more urgently.

Go to doctor: I would go to a gastroenterologist. They can visualize the site where the seed is stuck and can extract it and or give you medications to relieve the symptoms