It could be a number of things... it may have been stung by an insect? Knocked it on something indoors or outdoors, it could have a gum/tooth infection. I suggest you take it to the vets for a check up.
yes
Different people's bodies react differently, but yes, your lip can swell after getting it pierced.
Nope. They just pierce it. Anything they could use to numb your lip would cause it to swell up, making it hard to pierce you accurately. Besides, it doesn't hurt very much.
do you wear anykind of lipstick-gloss-chapstick?
A correct medical synonym for "upper lip" is "labium superius oris". A correct medical synonym for "lower lip" is "labium inferius oris".The anatomic term for the upper lip is the "labium superius oris" and the lower lip is "lower lip" is "labium inferius oris".
lip quivering
Foolishness.
Depending on the Size of your lips I would get a Long Tongue Bar 18-16g Because your lips swell up
The ring is scaled (sized) to your lip, it's not a one size fits all affair. Your professional body piercer will assist you in selecting a ring that will suit your lip. Be aware that your lip will swell so the ring must allow for swelling.
it means you look so sad that your lower lip is drooping excessively.
it can if it gets really big but it will heal in approximately 5 days or so
If you mean by pulling the lower lip with the hook of the candy cane, no, you cannot break your lower lip. It is more likely that the candy can will break than for it to break your lower lip. It is possible, however, if you have some sort of super cane that is stronger than other normal candy canes.