Of course you should get it checked. Without a diagnosis you have nothing to research, really. It could be anything, but if it is an infection of any kind, the longer it goes untreated the worse it gets. Will it kill you? Probably not, but for anyone reading this, part of the urinary tract is the kidneys, and yes, kidney infections can do a lot of damage. Go see the doc ASAP.
yes it can kill,go get medication