I have been experiencing all of the same symptoms of a UTI, PMS, and pregnancy. Im confused?

Don't freak out. Several symptoms of each one overlap so it's natural to see signs that fit every category. your best bet is to visit a doctor because honestly, whether you have cronic PMS, a UTI, or you're pregnant, you need medical attention. they can examine you and tell you exactly what is going on and prescribe you something to help if there is an issue. no amount of internet research can tell you exactly what you have going on. you need to contact your physician.