Is it OAB?

New here; so I have had what I thought was a UTI. Lingering urgency a d frequency, Just a pain for a couple weeks, had one also a few months ago that really never fully cleared now that I think about it. Anyways after a normal TV ultra sound my dr said I might have OAB or urge incontinence. She changed my antibiotics to be sure it wasn’t a uti but now I’m wondering if it could be OAB. Scheduled me to go back if it doesn’t clear up but here I am because this frequent urge to go never ends. Does this sound like OAB? Should I see a urologist? (My dr is OBGYN). Feeling confused and miserable. Does OAB cause some back pain also? Just confused about this as she didn’t really give me info.