i feel like i am having a fever or a temperature. What can it be? hi, i was wondering what may cause being tired , dizziness , lower back pain(both sides), frequent urination (i had 2 very strange weeks of these so i stopped taking water if i dont have a chance to be around a WC facility), and it seems like i am not concentrating as i usually do and i feel like i am having a fever or a temperature. What can it be?