Is this a UTI?

I have had what I think to be a UTI for about a week now. I thought it was better after a couple days but all of a sudden this morning I feel so much worse. It is like a throbbing sensation and I am also every once in awhile feeling itchy inside my vagina. This morning it was very painful and I was itchy, but throughout the day it wasn’t too bad and the itching stopped. Now all of a sudden the pain has heightened so much and I am so uncomfortable. I have a doctors appt scheduled but before I can get in is there any recommendations you guys have? Does it sound like a UTI to you?