What are the signs of a UTI?mothe

Sooooo non pregnancy related and TMI but I’m trying to see if anyone else has experienced the same problem I am now. When I woke up this morning and went to the bathroom I noticed that it burned when I would pee so I figured just a UTI no big deal. But throughout the day my pain and burning got extremely bad and there is now blood in my pee. Has anyone else experienced this? If so was it just a UTI or something more serious? I have a doc appointment in the morning but I also wasn’t expecting the pain to be as bad or blood to pop up.