I need your help...can you relate??

So on sunday, I started feeling pressure in my abdomen and like I needed to pee. Thought it was a UTI, went to the doctor on Monday. They said they were going to treat it as a UTI but that the stick test came back negative and they were sending it out for culture. Called today, it came back clean...no UTI. But i feel bloated as all hell, still a lot of pressure, and im peeing often. No burning or anything. They asked if I ever had fibroids, I said no. They said, okay, well we want to do an ultrasound. So the soonest they can get me in is next Thursday. I'm super uncomfortable and can't stop wondering what is going on. Can anyone relate to this? I need some positive vibes.