Probably because you ate too fast or didn't chew properly. The piece of food is too big. If you have serious chest pains though you should see a doctor.
it will not hurt anything if you do, but you dont have to
yes
It gets digested with all the other food you have eaten. Though try not to swallow it straight away, a peppermint is to enjoy.
No, you might have a throat infection.
What kind of a person gets hurt by a butterfly?
Swallowing your saliva is a natural thing. It helps you taste food and digest food. And your saliva most definitely will NOT cause problems in your stomach, if it does, we are all in a bad way since your saliva is the only way you can swallow food. Your stomach acid is one of the most powerful acids known to man, so I highly doubt your saliva can hurt it. I think you're okay to swallow your own saliva.
swallow the food
Yes. It is edible. And basically anything edible is food
Most marine animals swallow their food whole. This is because they do not have teeth. But not all marine animals swallow their food whole. Some have small teeth.
Swallow.
To swallow.
dont move