Is this a UTI?

I have been feeling like I have to pee about every 20 minutes. When I go towards the end of it I feel a really strong tingling/tickling sensation. Almost like a build up of an orgasm. This is been going on for about a week now. And for the last four days, my urineHas been smelling like really bad gas or something. What is this and how can I make all of this stop?