what could it be?

So I was sure I had a uti since I felt like my lower abdomen was really heavy and bloated for a couple days and I have to pee like every hour and I've been getting shaky randomly and tired and very nauseous but only after I eat . I can drink stuff but once I eat I'm sooo sick . I went to the doctor and they told me that everything looked fine and I didn't have any infections or anything . Could I possible be pregnant and it's just to early to test since it's not a uti ? My period isn't do for a few more day but I heard you can have early symptoms . Also I have pcos so i could have ovulated like the day after my last period or not even ovulated at all . I don't know but does this sound normal at all?