Tired after waking up-why?

I woke up, and I just feel tired still. I feel like I have to go to the bathroom after I just went. Yesterday, I could not stop urinating, I do not know why, and I felt really nauseated, and I only had one bowel movement yesterday late at night. When I went swimming two days ago, I jumped in and I think water got in my nose. Could I be sick or something? What can I do? I cannot go to the doctor due to no insurance or money! and I had a headache yesterday too. And I do not have diabetes, cause my BS was 100 yesterday.