Bone in the gum..

Seems like these days, i always get hurt in my mouth.. Jus now while having dinner, i had a bone stuck in my gum at the back (left side again!! my ulcers jus recovered, which is on the left too!!) THen now, my gum hurts when i bite on my teeth.. Hopefully it doesn't get infected and cause me pain AGAIN lor.. BTW, the bone didn't come from fish, instead i tink it was from the sotong.. But i dun understand where the bone come from!! ARGH... Darn suay right??