Pain in teeth can be due to long lasting causes or due to recent causes. A pain
that has been lasting 5 days most likely will have a long term cause that has got aggravated now. If there is sharp pain it's will be because of cavities
in the teeth. If there is slow continuous pain it may be because of gum causes. In any case, looking at the teeth will give a better idea to give you a solution. Visit a dentist
and get a check up done.