Excessive Thirst and Other Symptoms - Seeking Input

Hello. I have been diagnosed with hypochondria so usually when I have small/unthreatening symptoms I try to ignore them or atleast acknowledge them but let myself know that sometimes people have this/that/the other and it's normal. This time the combination seems like it could actually mean something. I am excessively thirsty and the pinch test is telling me I'm dehydrated. But when I pee it's very light/clear. My fingers are a bit swollen. I have a low grade fever (99.3) and I have been completely exhausted since yesterday. Looking at these symptoms, what is your first thought as to what could be going on? Thanks for your input!