Sezz,
I have swallowing issues so I know how scary it is. There's been a few times we've called 911, once I was taken to the hospital. Mostly I choose to just try to get through it on my own.
My gastronologist stretched my esophogus during a endoscopy and that helped me but I heard it only lasts for a certain amount of time. I began having swallowing issues again 6 mos. later.
What has also helped me is seeing a neuromuscular massage therapist. They do much more than a massage therapist. My neck has tight muscles and this affects my swallowing. She does help me.
Good luck.