You need to see a doctor. This isn't something you want to mess with plus if you guess and let it go and it turns out to be diabetes you can end up in the emergency room practically dead. Happened to my exhusband and not fun.
There are free screening in your town. Find one and get tested! Your health is so important. It's the one thing you can improve with diet but you need to know what's wrong and guessing is just guessing.