You should be concerned and you should get that checked out. Those are symptoms of anaphylaxis which can become deadly pretty quickly. I'd make list everything you ate or drank in the previous 24 hours and go see a doctor. You may need to carry an Epi-pen because obviously if you're throat swells shut you've only got a couple minutes to deal with it.
I have experienced it and barely made it to the emergency room one time. As I walked in the door I suddenly couldn't breathe or speak.
"If we’re not supposed to eat animals, how come they’re made out of meat?" - Tom Snyder, talk show host