Pressure & feeling like i have to go to the bathroom then i can't. burning & hot feeling a below ribs on my back. both come and go. what could it be?

Urinary tract infect: Symptoms of urinary tract infection include painful, frequent & urgent urination/voiding. If limited to these symptoms, then we usually diagnose bladder infection w/urine test confirmation. If accompanied by fever/sweats/chills +/- back pain, we worry about kidney infection. Best to see your FamilyDoc, Student Health Center or Urgent Care.